A&P Practical #3
tough cords of connective tissue
flat sheets of connective tissue
attach bone to bone
attach bone to muscle
the point of attachment of a muscle that shows relatively little movement during contraction
the point of attachment that shows the most movement during contracrion
during contraction, the muscle insertion...
moves towards the origin
involves the resulting movement of a portion of the skeletion
Muscles can only ____________ as they contract, they never ______________.
refers to the identity of the nerve that controls a specific muscle
Skeletal muscles can be named by...
shape, size, location, number of heads, type of action, origin or insertion, direction of fibers
types of actions
extensor, pronator, flexor, & supinator
the first part refers to the origin (the sternum) the second part to the insertion (the hyoid bone)
straight, parallel to the body's midline
perpendicular to the midline; oblique diagonal to the midline
when the agonist and antagonist are working at the same time to produce an action
A muscle that assists a prime mover muscle in performing a specific action.
a muscle that causes motion
a muscle that opposes the action of the agonist by relaxing during the action