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Zoology
WCHS Zoology Chapter 7 Terms of Direction
| Word | Definition |
|---|---|
| aboral | the end opposite the mouth |
| oral | the end containing the mouth |
| anterior | the head end; usually the end of a bilateral animal that meets its environment |
| posterior | the tail end |
| cuadal | toward the tail |
| cephalic | toward the head |
| distal | away form the point of attachment of a structure on the body (e.g., the toes are distal to the knee) |
| proximal | toward the point of attachment of a structure on the body (e.g., the hip is proximal to the knee) |
| dorsal | the back of an animal; usually the upper surface; synonymous with posterior for animals that walk upright |
| ventral | the belly of an animal; usually the lower surface; synonymous with an anterior for animals that walk upright |
| inferior | below a point of reference(e.g., the mouth is inferior to the nose in humans) |
| superior | above a point of reference (eg., the neck is superior to the chest) |
| lateral | away from the plane that divides a bilateral animal into mirror images |
| medial (median) | on or near the plane that divides a bilateral animal into mirror images |
Created by:
dmoudy
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