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body in Biological Definition

Adenosine triphosphate

... 2 Synthesis 3 ATP in the human body 4 Other triphosphates 4.1 Reaction of ... can generate up to 36 ATP. ATP in the human body The total quantity of ATP in the human body is about 0.1 mole . The energy used by human ...

Anatomy

... as anthropotomy . So intricate is the human body that only a small number of professional human ... animals which are of interest in explaining human body structure are here dealt with. The articles ... groundwork of anatomy is built. Major body systems: Integumentary system Muscular ...

Animal

... and feed by consuming other organisms. Their body plan becomes fixed as they develop, usually early ... head with feeding and sensory organs. The body is triploblastic, i.e. all three germ layers are ... mouth and an anus, and there is also an internal body cavity called a coelom or pseudocoelom. There ...

Antibody

... To achieve the large number of specificities the body needs to protect itself against many different ... , bacteria , and fungi and protects the body against them by complement activation (classic ... helps to fight against pathogens that contact the body surface, ingested, or inhaled. It does not ...

Apoptosis

... of a mass of cells equal to an individual's body weight. Homeostasis is achieved when the rate ... they end up outside the places they should be in body tissues. Immune cell regulation B cells ... could become autoreactive and attack healthy body cells. The way the immune system regulates this ...

Barr body

... rather than the diploidy of the X or Z, a Barr body is the inactive X chromosome in a female cell, ... this results in different regions of the adult body having different chromosomes inactivated. This ... the different chromosomes; in some regions of the body one allele will be active, and in other regions ...

Bacterium

... space. They have a distinctive helical body that twists about as it moves. Bacterial ... infections can spread throughout the host's body and become systemic . In plants , bacteria ... currents from one place to another. The human body is home to billions of microorganisms; they can ...

Blood

... help carry oxygen to the rest of the cells in the body Blood is a circulating tissue ... components of the immune system defending the body against infection . Hormones also travel in ... human body, accounting for approximately 8% of body mass . Adult humans have about 60 milliliters ...

Brain

... most movement , behavior and homeostatic body functions such as heartbeat, blood pressure, fluid balance and body temperature. Functions of the brain are ... other neurons in the brain and throughout the body by sending various chemicals called ...

Cancer

... other tissues and spread to other areas of the body where the cells are not normally located ( ... Benign tumors do not spread to other parts of the body or invade other tissues, and they are rarely a ... physically active, and maintaining recommended body weight, may all contribute to reductions in risk ...

Cilium

... cell in the human eye is connected to its cell body with a specialized non-motile cilium. The ... microtubule organization center called a basal body . Basal body is structurally identical to and functionally ...

Diabetes mellitus

... recognized form), or decreased sensitivity of body tissues to insulin (diabetes mellitus type 2, ... cholesterol levels, maintaining a stable body weight, controlling high blood pressure and ... after a meal. Insulin makes it possible for most body tissues to remove glucose from the blood for use ...

Dialysis

... into the peritoneal cavity , the abdominal body cavity around the intestine . The fluid is left ... are also present in the fluid to maintain proper body levels. Patients weigh themselves, and measure ... and blood pressure daily to determine whether the body is retaining fluid and, thus, what strength of ...

Ebola

... they removed all the blood and excreta from his body with their bare hands. Most of the women in his ... is transmitted by direct contact with infected body fluids such as blood. The cause of the index ... that will work with VHF patients or infectious body fluids. Making sure that teams are trained to ...

Cold-blooded

... metabolic mechanism for regulating their body temperatures. Some (usually smaller) animals have ... techniques for obtaining their desired core body temeprature from the environment. Cold-blooded ... to heat or cool themselves. For the same body weight poikilotherms need 1/3 to 1/10 of the ...

Morphogenesis

... forms of tissues , organs and overall body anatomy . In the human embryo, the change from a ... genes . These genes establish the segmented body plan of the embryo along the anterior-posterior ... life cycle, or to refer to the evolution of a body structure within a taxonomic group . ...

Warm-blooded

... ) animal is one that can keep its core body temperature at a nearly constant level ... endotherms , warm-blooded animals control their body temperature by regulating their metabolic rates ... are increased enzyme activity and a constant body temperature, allowing these animals to be active ...

Bacterium

... space. They have a distinctive helical body that twists about as it moves. Bacterial ... infections can spread throughout the host's body and become systemic . In plants , bacteria ... currents from one place to another. The human body is home to billions of microorganisms; they can ...

Evolution

... before the evolution of organisms with hard body parts, such as shell, bone, and teeth, but exists ... Burgess Shale ) saw the creation of all the major body plans, or phyla , of modern animals. About 500 ... far as it inquires into the origin of the human body as coming from pre-existent and living matter." ...

Excretion

... waste products are then usually expelled from the body by elimination . In mammals , for example, ... While urine and feces are both waste material of body processes, they are in completely different ... ocean water), as it requires more water from the body to excrete the salt than is available in the ...

Flagellum

... bearings. Gram-positive organisms have 2 basal body rings, one in the peptidoglycan layer and one ... aid of enzymes or other factors. Both the basal body and the filament have a hollow core, through ... at its tip rather than at the base. The basal body has many traits in common with some types of ...

Fungus

... with spores ) Fungi have a vegetative body called a thallus or soma , composed of ... skin . pH of the skin, mucosal surfaces and body fluids Epithelial turnover Normal ... do pass the resistance barriers of the human body and establish infections, the infections are ...

Gene therapy

... ex vivo (where cells are modified outside the body and then transplanted back in again) and in vivo ... . Cells were removed from the patients body and incubated with vectors that inserted copies ... viruses are detected in the bloodstream the body sends antibodies to bind to and consume them. ...

Herpetology

... which are ectothermic (deriving their body temperature from their environment) rather than endothermic (deriving their body heat from an independent, internal source). This ... creatures such as dinosaurs , about whose body metabolism we know frustratingly little. (See ...

Homeobox

... cluster . Hox genes function in patterning the body axis. Thus, by providing the identity of particular body regions, Hox genes determine where limbs and other body segments will grow in a developing fetus or ...

Homeostasis

... homeostasis 3.1 Homeostasis in the human body 4 Other fields 4.1 Examples ... as the kidneys and lungs. The regulation of body temperature. This is mainly done by the skin. ... concentration of carbon dioxide in the human body increases, the lungs are signalled to increase ...

Human

... , and gibbons . Humans have an erect body carriage that frees the upper limbs for ... 2.5 Emotion 2.6 Sexuality 2.7 body 3 Habitat 4 Population 5 ... called a baby , is expelled from the female's body and breathes independently for the first time, at ...

Immune system

... and tissues involved in the adaptive defense of a body against foreign biological material. It may be ... self and non-self The immune system defends the body by recognizing agents that represent self and ... , which acts against bacteria and viruses in the body liquids (such as blood ). Its primary means of ...

Insulin

... approximately 45 g (1 1/2 ounces) in the total body water (which obviously includes more than merely blood and will be usually about 60% of the total body weight in men). This homeostatic effect is the ... are, indirectly, under insulin control in certain body cell types. A lack of circulating insulin will ...

Klinefelter's syndrome

... by gynecomastia (enlarged breasts), a rounded body type with abnormal body proportions, sparse facial and body hair , small testes , and an inability to ...

Kinetic energy

... , or living force ) is energy possessed by a body by virtue of its motion . The kinetic energy of a body is equal to the amount of work needed to ... of the dot product of the velocity ( v ) of a body and the infinitesimal of the body's momentum ...

Liver

... metabolism and has a number of functions in the body including detoxification, glycogen storage and ... disease , a hereditary disease which causes the body to retain copper Primary sclerosing ... . In insects this organ is known as the fat body . References The following are standard ...

Animal

... and feed by consuming other organisms. Their body plan becomes fixed as they develop, usually early ... head with feeding and sensory organs. The body is triploblastic, i.e. all three germ layers are ... mouth and an anus, and there is also an internal body cavity called a coelom or pseudocoelom. There ...

Morphogenesis

... forms of tissues , organs and overall body anatomy . In the human embryo, the change from a ... genes . These genes establish the segmented body plan of the embryo along the anterior-posterior ... life cycle, or to refer to the evolution of a body structure within a taxonomic group . ...

Magnetic resonance imaging

... Safety The presence of a ferromagnetic foreign body (such as shell fragments) in the subject, or a ... utilized to specifically locate tumors within the body in preparation for radiation therapy treatments. ... a patient is placed in specific, reproduceable, body position and scanned. The MRI system then ...

Muscle

... Muscle contraction is used to move parts of the body , as well as to move substances within the body. ... from the skin (in which it controls erection of body hair) to the blood vessels and digestive tract ... is called proprioception , the perception of body awareness. More easily demonstrated than ...

Nutrition

... the matter which comprises the cells of the body (except those cells produced before birth ) is ... of matter (chemicals) that are absorbed by the body can be determined by comparing the waste to the ... The effect that the absorbed matter has on the body can be determined by finding the difference ...

Osmoregulation

... active regulation of the osmotic pressure of body fluids to maintain the homeostasis of the body's water content, that is it keeps the body from becoming too dilute or too concentrated. ... of solutes and amount of water in their body fluids; this involves excretion: getting rid of ...

Proprioception

... provides feedback solely on the status of the body internally. It is the sense that indicates whether or not your body is moving with required effort as where the various parts of the body are located in relation to each other. ...

Protein

... the diet . The metabolism of proteins by the body releases ammonia , an extremely toxic substance. ... amino acids in sufficient quantities that the body may produce all the proteins that it needs. ... muscle mass (proteins repair muscle tissue), low body temperature, and hormonal irregularities. Severe ...
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