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BI221
Anatomical planes and positional terms
| Term | Definition |
|---|---|
| midsagittal | vertical plane along the mid line that separates left from right |
| parasagittal | vertical plane that separates left from right into unequal sides |
| transverse | vertical plane that separates cranial and caudal sections |
| frontal (coronal) | horizontal plane that separates dorsal and ventral sections |
| cranial/ anterior | toward head region |
| caudal/ posterior | away from head; toward tail |
| dorsal/ superior | toward organism's back; generally upper surface |
| ventral/ inferior | toward organism's belly; generally lower surface |
| rostral | region around nasal area |
| anal | region around digestive system's exit from the body |
| proximal | toward body's trunk; closer to point of origin |
| distal | away from body's trunk; further from the point of origin |
| medial | nearer to mid line of the body or mid line of a structure |
| lateral | farther from the mid line of the body or the mid line of a structure |
| superficial | toward or on surface of the body or surface of a structure |
| deep | toward center of body or center of structure |
| parietal | pertaining to or forming the outer wall of a body cavity |
| visceral | pertaining to the covering of an organ within ventral body cavity |