Albinism
... in a lack of pigmentation in the eyes,
skin and hair. It is an inherited condition arising ... problems with photosensitivity in eyesight and
skin usually result from the condition. This article ... in the body. Melanin helps protect the
skin from ultraviolet light coming from the sun ...
Bacterium
... by bacteria, for example, prior to cutting the
skin during surgery or swabbing
skin with alcohol when piercing the
skin with the needle of a syringe. Sterilization of ...
Cancer
... as a part of their lifecycle (in tissues such as
skin or the mucous membranes of the digestive ... originate in epithelial cells , e.g.
skin , digestive tract or glands . Leukemia ... kidneys , rhabdomyosarcoma - in muscles ,
skin cancer (including benign moles and dysplastic ...
Bacterium
... by bacteria, for example, prior to cutting the
skin during surgery or swabbing
skin with alcohol when piercing the
skin with the needle of a syringe. Sterilization of ...
Human
... too, depending on genes and environment.
Human
skin color can range from very dark brown to very ... with ancestors from sunny regions have darker
skin than people with ancestors from regions with ... and less sunny regions; and these people may have
skin colors across the spectrum. On average, women ...
Insulin
... that tests for blood glucose levels through the
skin and administers corrective doses of insulin through pores in the
skin of the patient. Both electricity and ultrasound have been found to make the
skin temporarily porous. The insulin administration ...
Keratin
... protein found in the outer layer of the
skin of human beings and many other animals. This outer layer of
skin is called the epidermis . The outermost layer of ... keratin. The keratin in these cells makes the
skin tough and almost completely waterproof. In places ...
Marcello Malpighi
...
Malpighi used the microscope for studies on
skin , kidney , and for the first interspecies ... use lungs to breathe, but small holes in their
skin called tracheae . Later he falsely concluded ... structures are named after him, including a
skin layer (Malpighi layer ) and two different ...
Skin
...
In zootomy and dermatology ,
skin is an organ of the integumentary system ; ... that protect underlying muscles and organs .
skin is used for insulation , vitamin D production, sensation , and excretion (through sweat ).
skin on creatures regularly subjected to sunlight ...
Thermoregulation
... and urine about 3, respiration about 20,
skin (conduction, radiation and evaporation) about 77. Hence it is clear the chief means of loss are the
skin and the lungs. The more air that passes in and ... when water (often from perspiration) leaves the
skin surface as a gas, lowering the body temperature ...
Anatomy
...
Ovary
Pharynx
Pancreas
Penis
Placenta
Rectum
skin
Small intestine
Spleen
Stomach
Tongue
Uterus
...
Genitals
Head
Joint
Leg
Mouth
Neck
Scalp
skin
Teeth
Tongue
Other anatomic terms (not classified):
...
Blood
... is never blue , but veins appear blue because light is diffused by
skin . Moreover, the blood inside is dark red and exhibits poor light ... a physiological perspective, veins and arteries appear similar when
skin is removed and are seen directly.
Blood moves in blood vessels and is ...
Dialysis
... common are lignocaine(lidocaine) a local anaesthetic injected under the
skin and there is also available a cream called EMLA which is applied to the
skin 45 minutes before the needles are inserted). Fistulas are widely ...
Heterozygote
... carrier . If the proteins are structural, such as those that comprise
skin or bone matrix, a mixture of normal or abnormal products usually produces abnormal
skin or bone, and the resulting abnormality is termed a dominant trait or ...
Pigment
... is the same for all viewing angles. Nearly all types of cells, such as
skin , eyes , fur and hair contain pigment. Butterfly wings typically ... Phycobilin
Other
Hematochrome
Melanin - Which causes human
skin coloration
Pthalocyanine blue
Urea
Painting pigments
...
Semen
... Semen and transmission of disease
Semen is in itself harmless on the
skin or if swallowed. However, semen can be the vehicle for many sexually ... plasma and seminal lymphocytes.
Note that any kind of sexual or other
skin contact with the semen of a person infected with HIV should be avoided, ...
Antibiotic
... as the first successful use of an oral antibiotic. During the same era, Rene Dubos isolated tyrothricin , an antibiotic used topically for
skin infections, from soil bacteria.
With the increased need for treating wound infections in World War II , resources were poured into investigating ...
Antibiotic resistance
...
Staphylococcus aureus (colloquially known as "Staph aureus") is one of the major resistant pathogens. Found on the mucous membranes and the
skin of around a third of the population, it is extremely adaptable to antibiotic pressure. It was the first bacterium in which penicillin resistance ...
Antibody
... cells, and certain viruses "hide" inside cells for long periods of time to avoid them. This is the reason for the chronic nature of many minor
skin diseases (such as cold sores ); any given outbreak is quickly suppressed by the immune system, but the infection is never truly eradicated because ...
Apoptosis
...
Homeostasis
In the adult organism, the number of cells within an organ or tissue has to be constant within a certain range. Blood and
skin cells, for instance, are constantly renewed by their respective progenitor cells; but proliferation has to be compensated by cell death. This ...
Barr body
... This is what results in the coloration pattern of female calico cats ; pigmentation genes on the X chromosome are activated in different patches of
skin based on which chromosome is condensed in those regions.
The Barr body chromosome is generally considered to be inert, but in fact a small number ...
Biotechnology
... section of biotechnology is the directed use of organisms for the manufacture of organic products (examples include beer , milk -products, and
skin ). Naturally present bacteria are utilized by the mining industry in bioleaching . Biotechnology is also used to recycle, treat waste, clean up ...
Biomechanics
... and collagen , living cells, ground substances such as proteoglycans, and the orientations of fibers within the tissue. For example, if human
skin were largely composed of a protein other than collagen , many of its mechanical properties, such as elastic modulus , would be different.
...
Carolus Linnaeus
... were four subcategories. These categories, Americanus , Asiaticus , Africanus , and Europeanus were based on place of origin at first, and later
skin color. Each race had certain characteristics that members supposedly had. Native Americans were reddish, stubborn, and angered easily. Africans were ...
Collagen
... protein of connective tissue . It has great tensile strength , and is the main component of ligaments and tendons . It is responsible for
skin elasticity, and its degradation leads to wrinkles that accompany aging. Collagen also fills out the cornea where it is present in crystalline ...
Cytoskeleton
... Different intermediate filaments are:
made of vimentins , being the common structural support of many cells.
made of keratin , found in
skin cells, hair and nails .
Neurofilaments of neural cells.
made of Lamin , giving structural support to the nuclear envelope.
...
Ebola
... fatigue, and a fever for more than 72 hours and less than three weeks. The patient also may have unexplained bleeding from the mucous membranes ,
skin , eyes , or gastrointestinal tract . The patient may also be going into shock (has a systolic blood pressure of less than 90 mm Hg or a ...
Endodermis
... Endodermis is the bottom layer of
skin .
In plants, it is a thin layer of parenchyma found in roots , just outside the vascular cylinder. It regulates the flow of water. Endodermis ...
Epidermis
... layer of cells covering the leaves and young parts of a plant is the epidermis .
In vertebrates , epidermis is the outermost layer of the
skin .
In invertebrates , the outermost layer of cells of the organism.
Etymology : 17th Century, via Late Latin from Greek , from epi- ...
Eye
... appearance once fully developed, vertebrate eyes grow outward from brain cells during embryonic development, while mollusk eyes grow inward from
skin cells.
How a complex structure like the eye could have evolved is often said to be a difficult question for the theory of evolution , on the basis ...
Foot and mouth disease
... susceptible animals through direct contact with infected animals or with contaminated pens or vehicles used to transport livestock. The clothes and
skin of animal handlers such as farmers, standing water, and uncooked food scraps and feed supplements containing infected animal products can harbor the ...
Fungus
... immunity to fungi and most of the infections they cause are mild and self-limiting. This resistance is due to:
Fatty acid content of the
skin .
pH of the skin, mucosal surfaces and body fluids
Epithelial turnover
Normal flora
Transferrin
Cilia of respiratory ...
Herpetology
... reptiles and amphibians, share "cold-bloodedness" but otherwise have surprisingly little else in common. Typically, amphibians have a permeable
skin that assists in the exchange of gases and respiration , have a two-chambered heart like fish, and are often bound to water for at least some part ...
Homunculus
... with a golem . However, after a short time, the homunculus would turn on its creator and run away. The recipe consisted of a bag of bones, sperm,
skin fragments and hair from any animal you wanted it to be a hybrid of. This was to be laid in the ground surrounded by horse manure for forty days, at ...
Immune system
... signal" as speculated by Janeway and Matzinger, respectively.
Physical barrier
The first defense includes barriers to infection such as
skin and mucus coating of the gut and airways, physically preventing the interaction between the host and pathogen. Pathogens which penetrate these ...
Immunology
... system are thymus , spleen , bone marrow , lymph vessels , lymph nodes and secondary lymphatic tissues such as tonsils and adenoids ) and
skin . The major organs, the thymus and spleen, are examined histologically only post-mortem during autopsy . However some lymph nodes, and secondary ...
Lung
... arrangement, but amphibians have low metabolic demands and also frequently supplement their oxygen supply by diffusion across the moist outer
skin of their bodies.
Evolutionary origins
The lungs of vertebrates are closely related (i.e. homologous ) to the gas bladders of fish (but ...
Antibiotic resistance
...
Staphylococcus aureus (colloquially known as "Staph aureus") is one of the major resistant pathogens. Found on the mucous membranes and the
skin of around a third of the population, it is extremely adaptable to antibiotic pressure. It was the first bacterium in which penicillin resistance ...
Muscle
... . It is connected by tendons to processes of the skeleton . In contrast, smooth muscle occurs at various scales in almost every organ, from the
skin (in which it controls erection of body hair) to the blood vessels and digestive tract (in which it controls the caliber of a lumen and ...
Nutrition
... seen as adversely affecting people’s health: polished rice was identified as a cause of beri-beri when people realized that removing the
skin of the rice was a process which removed essential nutrients.
In the late 1800s in the United States, babies started developing scurvy; there was a ...