click below
click below
Normal Size Small Size show me how
chapter 1 vocab
| Term | Definition |
|---|---|
| anatomy | science of body structures |
| physiology | science of body functions |
| dissection | careful cutting apart of the body structures |
| anatomical position | standard position of reference where you stand, face observer, palms turned forward |
| prone | body lying facedown |
| supine | body lying faceup |
| trunk | comprised of chest, abdomen, and pelvis areas |
| superior | toward the head |
| inferior | away from the head |
| anterior | at the front of the body (ventral) |
| posterior | at the back of the body (dorsal) |
| medial | nearer to midline |
| lateral | farther from midline |
| proximal | nearer to the trunk of the body |
| distal | farther from trunk of body |
| superficial | on surface of body |
| deep | away from the surface of body |
| planes | imaginary flat surfaces that are used to divide the body |
| sagittal plane | divides left and right |
| coronal/frontal plane | divides anterior and posterior |
| transverse plane | divides top and bottom; superior and inferior |
| oblique plane | cut at an angle |
| cell | basic structural and functional unit of an organism |
| tissue | group of cells work together to perform a function |
| organ | structures composed of 2 or more types of tissue |
| organ system | related organs with a common function |
| metabolism | sum of all chemical processes |
| responsiveness | detect and react to internal or external signals |
| movement | motion of single cells to whole body |
| growth | increase in body size |
| differentiation | development from unspecialized cell to specialized cell |
| reproduction | new cells or new individual |
| homeostasis | maintenance of stable condition in body's internal environment |
| feedback system | cycle of events where a body condition is monitored, evaluated, changed continuously |
| controlled condition | monitored factor or variable of the body |
| stimulus | disruption that changes controlled condition |
| receptor | body structure monitors changes in the controlled condition - gives input |
| control center | sets range of a controlled condition - gives output |
| effector | body structure receives output from control center and produces a response |