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BIO 210: Lab Quiz 7 Motion Terms
Laboratory 12 motion terms
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Biology
10/30/2010

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Term
flexion
Definition
movement that decreases the joint angle from anatomical position
Term
extension
Definition
movement that straightens a joint and generally returns a body part to the zero position or anatomical position
Term
hyperextension
Definition
further extension of a joint beyond the zero position or anatomical position
Term
abduction
Definition
movement of a body part in the frontal plane away from the midline of the body
Term
adduction
Definition
movement in the frontal plane back toward the midline
Term
elevation
Definition
a movement that raises a body part vertically in the frontal plane
Term
depression
Definition
lowers a body part in the same plane
Term
protraction
Definition
the anterior movement of a body part in the transverse (horizontal) plane
Term
retraction
Definition
posterior movement; reverse of protraction
Term
circumduction
Definition
one end of an appendage remains stationary while the other end makes a circular motion; movement of a muscle that makes a conical shape
Term
rotation
Definition
movement in which a bone spins on its longitudinal axis; circular movement of a part of the body
Term
lateral rotation
Definition
moves the anterior surface of the limb towards the lateral side of the body
Term
medial rotation
Definition
turns the anterior surface of the limb toward the midline
Term
supination
Definition
forearm movement that turns the palm to face anteriorly or upward; forearm is in anatomical position when in this position
Term
pronation
Definition
forearm movement that turns the palm to face posteriorly or downward
Term
inversion
Definition
a movement in which the soles are turned medially
Term
eversion
Definition
a movement in which the soles are turned laterally
Term
dissect
Definition
to separate muscles
Term
reflect
Definition
to pull back a muscle
Term
transect
Definition
to cut a muscle in half
Term
action
Definition
what a muscle does
Term
fixing
Definition
to stabilize a joint