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Carp115 Directional
Directional Terminology for Zoology
| Term | Definition |
|---|---|
| Aboral | Away or opposite to the mouth, usually dorsal. |
| Anterior | Toward the front or head end, opposite of posterior. |
| Asymmetry | Irregular arrangement of body parts around a central point; not mirror images. |
| Bilateral Symmetry | Has left and right sides that are approximately mirror images. |
| Caudal | Towards the tail. |
| Cephalic | Of or relating to the head; opposite of caudal. |
| Cranial | The skull. Pertaining to the skull. |
| Cross Section | A section that is cut along the width (or middle) of a structure. |
| Deep | Structures away from the surface of the body; opposite of superficial. |
| Distal | Away from the point of attachment or origin. |
| Dorsal | Relating to the back or top side of an animal. |
| Frontal | Front part of an animal; parallel to dorsal or ventral. |
| Lateral | Toward the side; opposite of medial. |
| Medial | Toward the sagittal plane or center of the body; opposite of the lateral. |
| Median | Located in or near the sagittal plane. |
| Oral | Relating to the mouth. |
| Peripheral | Toward the outer surface. |
| Posterior | The hind part (rear) of the body; opposite of anterior. |
| Proximal | Toward the center or point of attachment; the opposite of distal. |
| Radial Symmetry | Arrangement of body part symmetrically around an axis. |
| Sagittal Plane | Any longitudinal plane passing from the head to the tail. |
| Superficial | Located near the surface of the body: the opposite of deep. |
| Transverse Plane | Any plane perpendicular to the sagittal and frontal planes. Sections of the body cut on a transverse plane are called cross sections. |
| Ventral | Relating to the belly or underside; opposite of dorsal. |