Ch. 7.5 Muscular System Key terms
This term means moving a body part away from the midline.
What is abduction?
This is a severe tightening of a flexor muscle that bends a joint.
What is a contracture?
: This tough sheetlike membrane covers and protects muscle tissue.
What is fascia?
This term describes muscles that are partially contracted even when not in use.
What is muscle tone?
This movement means turning a body part around its axis.
What is rotation?
This term means moving a body part toward the midline.
What is adduction?
This term means bending backward at the ankle.
What is dorsiflexion?
This movement means bending a body part.
What is flexion?
This body system contains over 600 muscles.
What is the muscular system?
This muscle type attaches to bones and allows body movement.
What is skeletal muscle?
This type of muscle forms the walls of the heart.
What is cardiac muscle?
This muscle trait lets a muscle return to its original shape after stretching.
What is elasticity?
This is the end of a muscle that moves during contraction.
What is the insertion?
This is the end of a muscle that does NOT move during contraction.
What is the origin?
This term means turning a body part upward.
What is supination?
This movement means swinging an arm in a circle.
What is circumduction?
This term means a muscle can respond to a stimulus.
What is excitability?
This word means a body function happens without conscious control.
What is involuntary?
This movement means bending the foot forward or pointing the toes.
What is plantar flexion?
These tough fibrous cords connect skeletal muscles to bones.
What are tendons?
This muscle property lets fibers shorten and thicken to cause movement.
What is contractibility?
This muscle ability means it can be stretched.
What is extensibility?
This movement means straightening a body part.
What is extension?
This term means turning a body part downward.
What is pronation?
This muscle type is found in internal organs like blood vessels and the digestive system.
What is visceral muscle?