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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 |