| A | B |
|---|
| superior | above or toward the head end of the body |
| inferior | below or toward the tail end of the body |
| anterior | near the front of belly side of the body |
| posterior | near the backside of the body |
| medial | toward the midline of the body |
| lateral | farther from the midline of the body |
| internal | deep within the body |
| external | near the outer surface of the body |
| proximal | nearer to body or origin of a port |
| distal | farther away from origin |
| central | principal part, a center |
| peripheral | extensions from a principal part of center |
| visceral | organs within a cavity |
| ventral | another name for anterior |
| dorsal | another name for posterior |
| cranial | another name for superior |
| caudal | another name for inferior |
| sagittal | divides the body into left and right planes |
| frontal | divides the body into front and back planes |
| transverse | divide the body into upper and lower planes |
| flexion | decrease in angle between bones |
| extension | increase in angle between bones |
| abduction | movement of a body part away from a midline |
| adduction | movement of a body part toward a midline |
| supination | palm up |
| pronation | palm down |
| inversion | sole of foot in |
| eversion | sole of foor out |
| rotation | revolving of twisting with no change in a body's position |
| protraction | moving a body part forward |
| retraction | act of drawing a body part back |
