muscular system Flashcards
skeletal muscle
voluntary muscles attached to bones
smooth muscle
involuntary muscle found in the digestive, circulatory, lymphatic, and respiratory systems
cardiac muscle
heart muscle
motor unit
a motor neuron and the muscle cells it connects to
muscle tone
the contraction within a resting muscle
fibrosis
muscle tissue that has been overcome by fibrous tissue
contraction
the act of muscle tissue shortening
stretch
the act of muscle tissue lengthening
atrophy
wasting away
origin
muscle attachment on bone that is usually more fixed than the other bone(s) the muscle attaches to
insertion
muscle attachment on bone that usually moves more than the other bone(s) the muscle attaches to
aponeurosis
broad layers of fascial tissue