Pregnancy is the carrying of one or more embryos or fetuses by female mammals, including humans, inside their bodies. In a pregnancy, there can be multiple gestations (for example, in the case of twins, or triplets). Human pregnancy is the most studied of all mammalian pregnancies.
Childbirth usually occurs about 38 weeks from fertilization, i.e. approximately 40 weeks from the start of the last menstruation. Thus, pregnancy lasts about nine months, although the exact definition of the English word “pregnancy” is a subject of controversy. The medical term for a pregnant female is gravida, although this term is rarely used in common speech. The term embryo is used to describe the developing human during the initial weeks, and the term fetus is used from about two months of development until birth. A woman who is pregnant for the first time is known as a primigravida or "gravida 1", while a woman who has never been pregnant is known as "gravida 0". Similarly, the terms "para 0", "para 1" and so on are used for the number of times a woman has given birth.
In many societies' medical and legal definitions, human pregnancy is somewhat arbitrarily divided into three trimester periods, as a means to simplify reference to the different stages of fetal development. The first trimester period carries the highest risk of miscarriage (natural death of embryo or fetus). During the second trimester the development of the fetus can start to be monitored and diagnosed. The third trimester often marks the beginning of viability, or the ability of the fetus to survive, with or without medical help, outside of the mother's womb.
Pregnancy
Osteoporosis
Osteoporosis is a disease of bone in which the bone mineral density (BMD) is reduced, bone microarchitecture is disrupted, and the amount and variety of non-collagenous proteins in bone is altered. Osteoporotic bones are more at risk of fracture. Osteoporosis is defined by the World Health Organization (WHO) in women as a bone mineral density 2.5 standard deviations below peak bone mass (20-year-old sex-matched healthy person average) as measured by DXA; the term "established osteoporosis" includes the presence of a fragility fracture. While treatment modalities are becoming available (such as the bisphosphonates), prevention is still considered the most important way to reduce fracture. Due to its hormonal component, more women, particularly after menopause, suffer from osteoporosis than men. In addition it may be caused by various hormonal conditions, smoking and medications (specifically glucocorticoids) as well as many chronic diseases.
Cervical Cancer
Cervical cancer is a malignancy of the cervix. It may present with vaginal bleeding but symptoms may be absent until the cancer is in its advanced stages, which has made cervical cancer the focus of intense screening efforts utilizing the Pap smear. In developed countries, the widespread use of cervical screening programs has reduced the incidence of invasive cervical cancer, by 50% or more. Most scientific studies have found that human papillomavirus (HPV) infection is responsible for virtually all cases of cervical cancer. Treatment consists of surgery (including local excision) in early stages and chemotherapy and radiotherapy in advanced stages of the disease. An effective HPV vaccine against the two most common cancer-causing strains of HPV has recently been licenced in the US (see Vaccine section, below). These two HPV strains together are responsible for approximately 70% of all cervical cancers. Experts recommend that women combine the benefits of both programs by seeking regular Pap smear screening, even after vaccination.
Human Sperm
The term sperm is derived from the Greek word spermos (Latin: sperma) meaning "seed" and refers to the male reproductive cells. Sperm cells are the smaller gametes involved in fertilization in anisogamy and oogamy. In these types of sexual reproduction, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. A uniflagellar sperm cell that is motile is also referred to as spermatozoon, whereas a non-motile sperm cell is referred to as spermatium. Sperm cells cannot divide and have a limited life span, but they can fuse with egg cells during fertilization to form a totipotent zygote with the potential to develop into a new organism.
The spermatozoa of animals are produced through spermatogenesis inside the male gonads (testicles) through meiosis. Sperm cells in algal and many plant gametophytes are produced in male gametangia (antheridia) through mitosis. In flowering plants, sperm nuclei are produced inside pollen
Benefits of Water Birth
For the baby
Childbirth can be a strenuous, and possibly disturbing, experience for the baby. Properly heated water helps to ease the transition from the birth canal to the outside world because the warm liquid resembles the familiar intra-uterine environment, and softens light, colors and noises.
To the mother
Pain Management
Harper reports that water birth is an effective form of pain management during labor and delivery (Harper 2000). Water birth is a form of hydrotherapy which, in studies, has been shown to be an effective form or pain management for a variety of conditions especially lower back pain (a common complaint of women in labor)[citation needed]. In an appraisal of 17 randomized trials, two controlled studies, 12 cohort studies, and two case reports, it was concluded that there was a definite "benefit from hydrotherapy in pain, function, self-efficacy and affect, joint mobility, strength, and balance, particularly among older adults, subjects with rheumatic conditions and chronic low back pain," (Geytenbeek 2002). When compared with conventional pain management techniques for labor and delivery (e.g. anaesthesia and narcotics) hydrotherapy is also possibly a safer alternative. In studies, epidural anaesthesia (EDA), is correlated with an increased rate of instrumental (e.g. forceps in childbirth) delivery rates and also caesarean section rates (Ros et al. 2007). Full immersion in water promotes physiological responses in the mother that reduce pain including a redistribution of blood volume, which stimulates the release of oxytocin and vasopressin (Katz 1990), the latter which also increases oxytocin blood levels (Odent 1998). The Cochrane Database of Systematic Reviews has found that "the statistically significant reduction in maternal perception of pain and in the rate of epidural analgesia suggest that water immersion during the first stage of labour is beneficial for some women. No evidence was found that this benefit was associated with poorer outcomes for babies or longer labours."
Water Birth
Water birth is a method of giving birth in a bathtub or pool full of warm water. Proponents believe this method has many benefits for both mother and infant, and is a safe alternative to standard types of delivery. Critics cite the introduction of an unnecessary risk factor to infants. However, criticisms and praise must be weighed both against the documented benefits of water birth, the risks of routine medical interventions that occur "on land" (which water birth is intented to help avoid), and also parental prerogative. With an increasing number of hospitals routinely offering tub facilities for labor and/or delivery in the U.S. and Europe, additional data on safety from studies is available, care providers are more experienced with benefits and risks and how to manage them, and protocols for monitoring water birth are becoming more stringent thus contributing to increased safety of this method of childbirth.
Symptoms Breast Cancer
Early breast cancer can in some cases present as breast pain (mastodynia) or a painful lump. Since the advent of breast mammography, breast cancer is most frequently discovered as an asymptomatic nodule on a mammogram, before any symptoms are present. A lump under the arm or above the collarbone that does not go away may be present. Other possible symptoms or medical signs include nipple discharge, bleeding from the nipple, new nipple inversion, and changes in the skin overlying the breast, often resembling an orange peel, known as peau d'orange[citation needed]. When breast cancer associates with skin inflammation, this is known as inflammatory breast cancer. In inflammatory breast cancer, the breast tumor itself is causing an inflammatory reaction of the skin, and this can cause pain, swelling, warmth, and redness throughout the entire breast.
Changes in the appearance or shape of the breast can raise suspicions of breast cancer.
Another reported symptom complex of breast cancer is Paget's disease of the breast. This syndrome presents as eczematoid skin changes at the nipple, and is a late manifestation of an underlying breast cancer.
Most breast symptoms do not turn out to represent underlying breast cancer. Benign breast diseases such as fibrocystic mastopathy, mastitis, functional mastodynia, and fibroadenoma of the breast are more common causes of breast symptoms. The appearance of a new breast symptom should be taken seriously by both patients and their doctors, because of the possibility of an underlying breast cancer at almost any age.
Occasionally, breast cancer presents as metastatic disease, that is, cancer that has spread beyond the original organ. Metastatic breast cancer will cause symptoms that depend on the location of metastasis. More common sites of metastasis include bone, liver, lung, and brain. Unexplained weight loss can occasionally herald an occult breast cancer, as can symptoms of fevers or chills. Bone or joint pains can sometimes be manifestations of metastatic breast cancer, as can jaundice or neurological symptoms. Pleural effusions are not uncommon with metastatic breast cancer. Obviously, these symptoms are "non-specific," meaning they can also be manifestations of many other illnesses.
Human Blood
Blood is a highly specialized circulating tissue consisting of several types of cells suspended in a fluid medium known as plasma. The cellular constituents are: red blood cells (erythrocytes), which carry respiratory gases and give it its red color because they contain hemoglobin (an iron-containing protein that binds oxygen in the lungs and transports it to tissues in the body), white blood cells (leukocytes), which fight disease, and platelets (thrombocytes), cell fragments which play an important part in the clotting of the blood.
Medical terms related to blood often begin with hemo- or hemato- (BE: haemo- and haemato-) from the Greek word "haima" for "blood." Anatomically, blood is considered a connective tissue from both its origin in the bones and its function.
Cough complications
The complications of coughing can be classified as either acute or chronic. Acute complications include cough syncope, fainting spells when coughs are prolonged and forceful. Cough syncope is caused by decreased blood flow to the brain, because the intrathoracic pressure is raised due to the coughing. Other acute complications include insomnia, cough-induced vomiting, chest pain due to muscular strain of incessant coughing, rupture of blebs causing spontaneous pneumothorax, and subconjunctival hemorrhage or "red eye". In severe cases, prolonged coughing can cause fatigue fractures of lower ribs and costochondritis, an inflammation of the connective tissue between the breastbone and the ribs. Chronic complications are common. In certain cases, it can even lead to abdominal or pelvic hernias. In women with prolapsed uterus, cough micturition (urination) can result, which can be a major social nuisance. Cough defecation can also occur.
Cough
A cough is a sudden, often repetitive, spasmodic contraction of the thoracic cavity, resulting in violent release of air from the lungs, and usually accompanied by a distinctive sound.
Coughing is an action the body takes to get rid of substances that are irritating the air passages. A cough is usually initiated to clear a buildup of phlegm in the trachea. Coughing can also be triggered by a bolus of food going down the trachea instead of the esophagus due to a failure of the epiglottis, although this may result in choking instead. Frequent or chronic coughing usually indicates the presence of a disease. Provided the patient is a non-smoker and has a normal chest X-ray, the cause of chronic cough in 93% of all patients is due to asthma, reflux (heartburn) or post-nasal drip. Other causes of chronic cough include chronic bronchitis and medications such as ACE inhibitors. Coughing can happen voluntarily as well as involuntarily.
Coughing during an injection can lessen the pain of the needle stick caused by a sudden, temporary rise in pressure in the chest and spinal canal, inhibiting the pain-conducting structures of the spinal cord.
Fruit Development
A fruit is a ripened ovary. After the ovule in an ovary is fertilized in a process known as pollination, the ovary begins to ripen. The ovule develops into a seed and the ovary wall pericarp may become fleshy (as in berries or drupes), or form a hard outer covering (as in nuts). In some cases, the sepals, petals and/or stamens and style of the flower fall off. Fruit development continues until the seeds have matured. With some multiseeded fruits the extent to which the flesh develops is proportional to the number of fertilized ovules.
The wall of the fruit, developed from the ovary wall of the flower, is called the pericarp. The pericarp is often differentiated into two or three distinct layers called the exocarp (outer layer - also called epicarp), mesocarp (middle layer), and endocarp (inner layer). In some fruits, especially simple fruits derived from an inferior ovary, other parts of the flower (such as the floral tube, including the petals, sepals, and stamens), fuse with the ovary and ripen with it. The plant hormone ethylene causes ripening. When such other floral parts are a significant part of the fruit, it is called an accessory fruit. Since other parts of the flower may contribute to the structure of the fruit, it is important to study flower structure to understand how a particular fruit forms.
Fruits are so varied in form and development, that it is difficult to devise a classification scheme that includes all known fruits. Many common terms for seeds and fruit are incorrectly applied, a fact that complicates understanding of the terminology. Seeds are ripened ovules; fruits are the ripened ovaries or carpels that contain the seeds. To these two basic definitions can be added the clarification that in botanical terminology, a nut is a type of fruit and not another term for seed.
Obesity in child
Obesity, especially central obesity (male-type or waist-predominant obesity), is an important risk factor for the "metabolic syndrome" ("syndrome X"), the clustering of a number of diseases and risk factors that heavily predispose for cardiovascular disease. These are diabetes mellitus type 2, high blood pressure, high blood cholesterol, and triglyceride levels (combined hyperlipidemia). An inflammatory state is present, which — together with the above — has been implicated in the high prevalence of atherosclerosis (fatty lumps in the arterial wall), and a prothrombotic state may further worsen cardiovascular risk.
Apart from the metabolic syndrome, obesity is also correlated (in population studies) with a variety of other complications. For many of these complaints, it has not been clearly established to what extent they are caused directly by obesity itself, or have some other cause (such as limited exercise) that causes obesity as well. Most confidence in a direct cause is given to the mechanical complications in the following list:
Cardiovascular: congestive heart failure, enlarged heart and its associated arrhythmias and dizziness, cor pulmonale, varicose veins, and pulmonary embolism Endocrine: polycystic ovarian syndrome (PCOS), menstrual disorders, and infertility Gastrointestinal: gastroesophageal reflux disease (GERD), fatty liver disease, cholelithiasis (gallstones), hernia, and colorectal cancer Renal and genitourinary: erectile dysfunction, urinary incontinence, chronic renal failure, hypogonadism (male), breast cancer (female), uterine cancer (female), stillbirth Integument (skin and appendages): stretch marks, acanthosis nigricans, lymphedema, cellulitis, carbuncles, intertrigo Musculoskeletal: hyperuricemia (which predisposes to gout), immobility, osteoarthritis, low back pain Neurologic: stroke, meralgia paresthetica, headache, carpal tunnel syndrome, dementia Respiratory: dyspnea, obstructive sleep apnea, hypoventilation syndrome, Pickwickian syndrome, asthma Psychological: Depression, low self esteem, body dysmorphic disorder, social stigmatization While being severely obese has many health ramifications, those who are somewhat overweight face little increased mortality or morbidity. Some studies suggest that the somewhat "overweight" tend to live longer than those at their "ideal" weight. This may in part be attributable to lower mortality rates in diseases where death is either caused or contributed to by significant weight loss due to the greater risk of being underweight experienced by those in the ideal category. Another factor which may confound mortality data is smoking, since obese individuals are less likely to smoke[citation needed]. Osteoporosis is known to occur less in slightly overweight people.
Hygiene of woman skin
Unclean skin favors the development of pathogenic organisms - the dead cells that continually slough off of the epidermis mix with the secretions of the sweat and sebaceous glands and the dust found on the skin to form a filthy layer on its surface. If not washed away, the slurry of sweat and sebaceous secretions mixed with dirt and dead skin is decomposed by bacterial flora, producing a foul smell. Functions of the skin are disturbed when it is excessively dirty; it becomes more easily damaged, the release of antibacterial compounds decreases and dirty skin is more prone to develop infections. Cosmetics should be used carefully because these may cause allergic reactions. Each season requires suitable clothing in order to facilitate the evaporation of the sweat. Sunlight, water and air play an important role in keeping the skin healthy.The skin supports its own ecosystems of microorganisms, including yeasts and bacteria, which cannot be removed by any amount of cleaning. Estimates place the number of individual bacteria on the surface of one square inch of human skin at 50 million though this figure varies greatly over the average 20 feet2 of human skin. Oily surfaces, such as the face, may contain over 500 million bacteria per square inch. Despite these vast quantities, all of the bacteria found on the skin's surface would fit into a volume the size of a pea.In general the microorganisms keep one another in check and are part of a healthy skin. When the balance is disturbed there may be an overgrowth and infection, such as when antibiotics kill microbes, resulting in an overgrowth of yeast. The skin is continuous with the inner epithelial lining of the body at the orifices, each of which supports its own complement of microbes
Hair
Hair is a filamentous outgrowth of dead cells from skin, found only on mammals. It projects from the epidermis, though it grows from hair follicles deep in the dermis. Although many other life forms, especially insects, show filamentous outgrowths, these are not considered "hair" in the accepted meaning of the term. So-called "hairs" (trichomes) are also found on plants. The projections on arthropods, such as insects and spiders are actually insect bristles. The hair of non-human mammal species is commonly referred to as fur. There are varieties of cats, dogs, and mice bred to have little or no visible fur. In some species, hair is absent at certain stages of life.
The primary component of hair fiber is keratin. Keratins are proteins, long chains (polymers) of amino acids. Keratin proteins form the cytoskeleton (miniature skeleton within a cell) of all epidermal cells. Keratin filaments run within a cell from the inside of the outer membrane to weave a "basket" around the nucleus of the cell. Keratins are a principal part of the cells in the epidermis, hair, nails, and feathers.
Human Teeth
Teeth (singular, tooth) are structures found in the jaws of many vertebrates that are used to tear, scrape, and chew food. Some animals, particularly carnivores, also use teeth for hunting or defense. The roots of teeth are covered by gums.
Teeth are among the most distinctive features of mammal species. Paleontologists use teeth to identify fossil species and determine their relationships. The shape of an animal's teeth is related to its diet. For example, plant matter is hard to digest, so herbivores have many molars for chewing. Carnivores, on the other hand, need canines to kill and tear meat.
Humans are diphyodont, meaning that they develop two sets of teeth. The first set (the "baby," "milk," "primary" or "deciduous" set) normally starts to appear at about six months of age, although some babies are born with one or more visible teeth, known as neonatal teeth. Normal tooth eruption at about six months is known as teething and can be quite painful for an infant.
Some animals develop only one set of teeth (monophyodont) while others develop many sets (polyphyodont). Sharks, for example, grow a new set of teeth every two weeks to replace worn teeth. Rodent incisors grow and wear away continually through gnawing, maintaining relatively constant length. Some rodent species, such as the sibling vole and the guinea pig, have continuously growing molars in addition to incisors.
Geriatric Rehabilitation
In the United States, geriatricians are primary care physicians who are board-certified in either family practice or internal medicine and have also acquired the additional training necessary to obtain the Certificate of Added Qualifications (CAQ) in geriatric medicine.
In the United Kingdom, most geriatricians are hospital physicians, while some focus on community geriatrics. While originally a distinct clinical specialty, it has been integrated as a specialism of general medicine since the late 1970s.Most geriatricians are therefore accredited for both. Specialized geriatrics services include orthogeriatrics (close cooperation with orthopedic surgery and a focus on osteoporosis and rehabilitation), psychogeriatrics (focus on dementia, depression and other conditions common in the elderly), and rehabilitation.
Rehabilitation may also take in intermediate care, where patients are referred by a hospital or family doctor, when there is a requirement to provide hospital based short term intensive physical therapy aimed at the recovery of musculoskeletal function, particularly recovery from joint, tendon, or ligament repair and, or, physical medicine and rehabilitation care when elderly patients get out of synch with their medication resulting in a deterioration of their personal health which reduces their ability to live independently
Anatomy of Human Breast
The breasts are modified sudoriferous (sweat) glands, producing milk.
The breasts are covered by skin. Each breast has one nipple surrounded by the areola. The areola is colored from pink to dark brown and has several sebaceous glands. The larger mammary glands within the breast produce the milk. They are distributed throughout the breast, with two-thirds of the tissue found within 30 mm of the base of the nipple.[2] These are drained to the nipple by between 4 and 18 lactiferous ducts, where each duct has its own opening. The network formed by these ducts is complex, like the tangled roots of a tree. It is not always arranged radially, and branches close to the nipple. The ducts near the nipple do not act as milk reservoirs. Ramsay et al. have shown that conventionally described lactiferous sinuses do not, in fact, exist.
The remainder of the breast is composed of connective tissue (collagen and elastin), adipose tissue (fat), and Cooper’s ligaments. The ratio of glands to adipose tissues rises from 1:1 in nonlactating women to 2:1 in lactating women.
The breasts sit over the pectoralis major muscle and usually extend from the level of the 2nd rib to the level of the 6th rib anteriorly. The superior lateral quadrant of the breast extends diagonally upwards towards the axillae and is known as the tail of Spense. A thin layer of mammary tissue extends from the clavicle above to the seventh or eighth ribs below and from the midline to the edge of the latissimus dorsi posteriorly.
The arterial blood supply to the breasts is derived from the internal thoracic artery (formerly called the internal mammary artery), lateral thoracic artery, thoracoacromial artery, and posterior intercostal arteries. The venous drainage of the breast is mainly to the axillary vein, but there is some drainage to the internal thoracic vein and the intercostal veins. Both sexes have a large concentration of blood vessels and nerves in their nipples. The nipples of both females and males can become erect in response to sexual stimuli.
The breast is innervated by the anterior and lateral cutaneous branches of the fourth through sixth intercostal nerves. The nipple is supplied by the T4 dermatome.
The primary anatomical support for the breasts is thought to be provided by the Cooper’s ligaments, with additional support from the skin covering the breasts themselves, and it is this support which determines the shape of the breasts. The external shape or size of the breast is not predictive of its internal anatomy nor of its lactation potential. In a small fraction of women, the frontal milk sinuses (ampulla) in the breasts are not flush with the surrounding breast tissue, which causes the sinus area to visibly bulge outward
(source from wikipedia.org)
Milk
Milk is a white liquid produced by the mammary glands of female mammals (including monotremes). The female ability to produce milk is one of the defining characteristics of mammals. It provides the primary source of nutrition for newborns before they are able to digest other types of food. The early lactation milk is known as colostrum, and carries the mother's antibodies to the baby. It can reduce the risk of many diseases in the baby.
The exact components of raw milk varies by species, but it contains significant amounts of saturated fat, protein and calcium. Aquatic mammals, such as seals and whales, produce milk that is very rich in fats and other solid nutrients when compared with land mammals' milk.
Humans, like other mammals, can consume mother's milk during their infancy. In many ethnic groups, people lose the ability to digest milk after childhood (that is, they become lactose intolerant), so many traditional cuisines around the world do not feature dairy products. On the other hand, those cultures that do tolerate milk have often exercised great creativity in using the milk of domesticated ruminants, especially cows, but also sheep, goats, yaks, water buffalo, horses and camels. For millennia, cow's milk has been processed into dairy products such as cream, butter, yoghurt, ice cream, and especially the more durable and easily transportable product, cheese. Industrial science has brought us casein, whey protein, lactose, condensed milk, powdered milk, and many other food-additive and industrial products.
Human milk is fed to infants through breastfeeding, either directly or by expressing the milk to be stored and consumed later. Some cultures, historically or presently, continue to use breast milk to feed their children until as old as seven years.
The term milk is also used for non-animal substitutes such as soy milk, rice milk, almond milk, and coconut milk, and even the regurgitated substance pigeons feed their young, called crop milk, which bears little resemblance to mammalian milk.
Bean
The term Bean originally referred to the seed of the broad bean, but was later broadened to include members of the genus Phaseolus such as the common bean or haricot and the runner bean and the related genus Vigna. The term is now applied in a general way to many other related plants such as soybeans, peas, lentils, kidney beans, vetches and lupins.
Bean can be used as a near synonym of pulse, an edible legume, though the term "pulses" is usually reserved for leguminous crops harvested for their dry grain. Pulses usually excludes crops mainly used for oil extraction (like soybean and peanut) or those used exclusively for sowing purposes (clover and alfalfa). Leguminous crops harvested green for food, such as snap beans, green peas etc, are classified as vegetable crops.
In English usage 'beans' sometimes also refer to seeds or other organs of non leguminosae which bear a resemblance to the vegetable, for example coffee beans, castor beans and cocoa beans (which resemble bean seeds), and vanilla beans (which resemble the pods)
(source from wikipedia.org)
Symbolic Meaning of Lip
Lips are often viewed as a symbol for sensuality. This has many origins; above all that they are very sensitive as a tactile organ and feel pleasantly soft. It has been suggested that female lips are seen as sexually attractive because they mimic the appearance and sexual swelling of the labia of the vulva, and that the lips are therefore a secondary sex characteristic. Additionally, they are a part of the mouth and so are associated with its symbolic connections.
Nutrition
There are six main classes of nutrients that the body needs: carbohydrates, proteins, fats, vitamins, minerals, and water. It is important to consume these six nutrients on a daily basis to build and maintain healthy bodily function.
Poor health can be caused by an imbalance of nutrients, either an excess or deficiency, which, in turn, affects bodily functions cumulatively. Moreover, because most nutrients are involved in cell-to-cell signalling (e.g. as building blocks or as part of a hormone or signalling cascades), deficiency or excess of various nutrients affects hormonal function indirectly. Thus, because they largely regulate the expression of genes, hormones represent a link between nutrition and how our genes are expressed, i.e. our phenotype. The strength and nature of this link are continually under investigation, but recent observations have demonstrated a pivotal role for nutrition in hormonal activity and function and therefore in health.
(Source from wikipedia.org)