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Bilateral Symmetry
Terms - Directions/Positions
16
Anatomy
Undergraduate 3
09/04/2007

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Cards

Term
medial
Definition
towards the median plane (ctr. line of the body)
Term
lateral
Definition
away from the median plane
Term
deep (internal)
Definition
towards the ctr. of the body or a body part
Term
superficial (external)
Definition
towards the surface of the body or a body part
Term
proximal
Definition
toward the body
used to describe positions only on extremities
Term
distal
Definition
away from the body
used to describe positions only on extremities
Term
sagittal plane
Definition
a plane that runs the length of the body & divides it into left & rt. parts that are not necessarily equal halves
Term
sagittal plane
Definition
a plane that runs the length of the body & divides it into left & rt. parts that are not necessarily equal halves
Term
median plane
Definition
a certain kind of sagittal plane that runs down the ctr. of the body lengthwise & divides it into equal left & rt. halves
Term
transverse plane
Definition
a plane across the body that divides it into cranial & caudal parts that are not necessarily equal
Term
dorsal plane
Definition
a plane at rt. angles to the sagittal & transverse planes
divides the body into dorsal & ventral parts that are not necessarily equal
Term
caudal
Definition
tail-end
towards the tail
Term
cranial
Definition
head-end
towards the head
Term
rostral
Definition
towards the rostrum (tip of the nose)
used to describe only positions or directions on the head
Term
dorsal
Definition
toward the back (top surface) of a standing animal
Term
ventral
Definition
towards the belly (bottom) of a standing animal
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