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Directional Planes

Penn Foster - Directional Planes etc.

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
Created by: cmonkey8



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