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A&P
Terminology
Term | Definition |
---|---|
Anatomy | Study of the form/structure of body parts and of how these parts relate to one another. |
Physiology | Concerns the functioning of the body's structural machinery, that is, how the parts of the body work and carry out their life-sustaining activities. |
Movement | self-initiated change in position, motion of internal parts. |
Responsiveness | ability to sense changes within, or around the organism & react to them (highly developed in nerve/muscle cells). |
Conductivity | the capacity of living cells & tissues to selectively transmit or propagate a wave of excitation from one point to another within the body (highly developed in nerve/muscle cells). |
Growth | increase in body size. |
Reproduction | parents produce offspring/new individuals. |
Respiration | obtaining oxygen (O2), using it to release energy from food substances & ridding of wastes. |
Digestion | Chemically changing (breaking down) food substances & ridding of wastes. |
Absorption | passage of digested products through membranes & into body fluids. |
Secretion | production & delivery of specialized substances for diverse body functions (digestive juices and hormones). |
Circulation | movement of substances throughout the body. |
Assimilation | changing absorbed substances into chemically different substances. |
Excretion | removal of wastes. |
Metabolism | all physical & chemical reactions occurring in an organism. |
Bodily needs: | water, food, oxygen, heat, pressure |
Homeostasis | tendency of the body to maintain a stable, balanced internal environment. Includes 3 components; receptor, control center, effector. |
Tissue | a group of cells that work together to carry out certain common functions. |
Organ | a group of tissues working together to carry out certain common functions. |
Anatomical position | body is in an erect position with arms at the sides & palms turned forward; reference position that gives meaning to the directional terms used to describe body parts/regions. |
Bilateral Symmetry | one of the most obvious of the external organizational features in human; right/left sides of body are mirror images and only one place can divide the body into those sides. |
Ipsilateral | on the same side. |
Contralateral | on the opposite side. |