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Anatomy 1-25 Vocab

Abdomen The lower part of the trunk below the level of the ninth pair of ribs. It contains the major parts of the digestive and excretory systems as well as many endocrine glands.
Abduction Withdrawl of the body from the axis of the body or of an extremity.
Absorption The passage of materials thru a cell memebrane by either diffusion or osmosis.
Acetycholine A substande produced at the junction of nerve and muscle fibers which results in the contraction of the muscle.
Actin One of the two proteins concerned in muscle contraction.
Action current The electric current accompanying the activity of any reacting tissue.
Adduction Any movement resulting in one part of the body or a limb being brought toward another or the median line of the body.
Adenosinediphosphate (ADP) A compound of one molecule of adenine, one of ribose and two of phosphoric acid.
Adenosinetriphosphate (ATP) A compound consisting of one molecule of adenino, one of ribose and three of phosphoric acid.
Aidpose tissue A type of tissue in which each cell contains a single large vacuole filled with oil.
Afferent The passage of a nervous impulse toward the CNS or blood toward the heart.
Afterimage The rotation of a visual image on the retina of the eye after the light stimulus has been cut off.
Agglutination The clumping together of cells, caused by the chemical action of agglutinins on their surfaces.
Agglutinin A chemical substance which affects the outer layer of a cell's membrance and makes it sticky.
Agglutinogen A chemical substance in the cell's membrane toward which the agglutinin is antagonistic.
Albumin A relatively simple type of protein.
Albaminuria The excretion of albumin in the urine.
All or none Occuring completely or not at all, as the response of a nerve ora muscle bundle to a stimulus.
Amino acid A chemical compound that contains both the amine(NH2) and the organic acid(COOH) radicals.
Anabolism Those chemical processes occuring during the life of a cell that result in the formation of new protoplasm or the replacement of old.
Anaphase A stage in mitosis that is characterized by the migration of chromosome halves to opposite poles of the cell.
Anatomy The branch of the biological sciences dealing with visible body structures.
Anemia A condition resulting from a lowering of the amount of hemoglobin in the body.
Anoxia The condition resulting from a lack of oxygen.
Anatagonistic action of muscles The opposing action of the members of a pair of skeletal muscles.
Created by: nissaAPworld