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Directional Planes
Penn Foster - Directional Planes etc.
| Question | Answer |
|---|---|
| median plane | divides the animal down the center into equal halves |
| body's long axis | spine |
| dorsal plane (frontal) | perpendicular to the median plane divides the body into 2 parts, the belly and the back |
| transverse plane | perpendicular to both themedianand frontal planes, cross sections |
| cranial | closer to the head |
| caudal | closer to the tail |
| rostral | parts of the head closer to the tip of the nose |
| dorsal | closer to the back of the spine |
| ventral | nearer to the side of the animal that's closer to the ground |
| lateral | refers to a position farther away from the median plane, toward the side |
| medial | refers to a position closer to the median plane |
| anterior | in fornt of or inthe forward part of an organ |
| posterior | a position or surface toward the rear of the animal |
| proximal | refers to a body part being closer to the main portion of the body |
| distal | a body part placed farther away from the main portion of the body |
| superficial | a position closer to the surface of a structure |
| orad | movement within the gi system in the direction of the mouth |
| aborad | motion in the direction away from the mouth |
| symmetry | balance in the distribution of body parts |
| bilateral symmetry | the left and right sides are mirror images of each other |
| radial symmetry | axis of symmetry is around a central point (starfish) |
| dorsal body cavity | contains the central nervous system |
| cranial cavity | formed from the bones of the skull and contains the brain |
| spinal cavity | formed from the vertebra and contains the spinal cord |
| thoracic body cavity | contains the heart, lungs, and esophagus |
| abdominal cavity | contains all the organs of the reproductive and urinary stytems, stomach and intestines |
| abdominal cavity sometimes called the _______ | peritoneal |