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CVA muscle terms
movement/naming
24
Biology
Undergraduate 4
02/06/2014

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Term
Extensors
Definition
Increase the angle between 2 bones
Term
Flexors
Definition
Decrease angle between 2 bones
Term
Abductors
Definition
Move a limb away from the midline
Term
Adductors
Definition
Move a limb towards the midline
Term
Protractors
Definition
Thrust a part of the body forward
Term
Retractors
Definition
Pull a part of the body back
Term
Levators
Definition
Raise a structure of the body
Term
Depressors
Definition
Lower a structure of the body
Term
Rotators
Definition
Rotates body part on its axis
Term
Supinators
Definition
Rotate the palms/soles upward
Term
Pronator
Definition
Rotate the Palm/sole downwards
Term
Tensors
Definition
Increase the tension on a structure
Term
Sphincters
Definition
Decreases the size of an opening
Term
Dialators
Definition
Increase the size of an opening
Term
Rectus
Definition
Fibers run parallel to body midline
Term
Oblique
Definition
Fibers run at 45° angle to midline
Term
Transverse
Definition
Fibers running at right angle/perpendicular to midline
Term
Pennate
Definition
Fascicles are short and attach obliquely to a tendon which runs the length of the muscle
Term
Bipennate
Definition
Fascicles attach to two sides of the tendon
Term
Multipennate
Definition
Fascicles attach to more than two sides of the tendons
Term
Convergent
Definition
Origin of muscle is broad and the muscle narrows as it approaches the insertion
Term
Circular/sphincter
Definition
The fascicles are arranged in concentric rings
Term
Origin
Definition
Attachment that does not move
Term
Insertion
Definition
Attachment that moves when muscles contract
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