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A&P Directional Term
| Term | Definition |
|---|---|
| superior (cranial) | toward the head end of upper part of the body |
| inferior (caudal) | away from the head end and toward the lower part of the body |
| anterior (ventral) | toward the front or belly side |
| posterior (dorsal) | toward the back |
| medial | toward the midline |
| lateral | away from the midline |
| superficial (external) | toward the surface of the body |
| deep (internal) | away from the surface of the body |
| proximal | toward a structure's origin or point of attachment to the trunk |
| distal | away from a structure's origin or point of attachement to the trunk |
| transverse plane | divides the body into upper and lower portions |
| fronal (coronal) plane | divides the body into anterior and posterior portions |
| sagittal plane | divides the body into left and right portions |
| midsagittal | divides body into left and right portions down the middle (equally) |
| parasagittal | divides body into left and right portions unequally |