Ch. 7.5 Muscular System Key terms
What does abduction mean?
abduction means moving a body part away from the midline.
what does contracture mean?
contracture means severe tightening of a flexor muscle resulting in bending of a joint.
What does extension mean?
extension means increasing the angle between two bones, or straightening a body part.
What does muscle tone mean?
muscle tone means This state of partial contraction.
What does rotation mean?
rotation means turning a body part around its own axis.
What does adduction mean?
adduction means moving a body part toward the midline.
What does dorsiflexion mean?
dorsiflexion means bending backward or bending the foot.
What does fascia mean?
fascia means a tough, sheetlike membrane that covers and protects the tissue.
What does muscular system mean?
muscular system means More than 600 muscles make up the system.
What does skeletal muscle mean?
skeletal muscle means nattached to bones.
What does cardiac muscle mean?
cardiac muscle means forms the walls of the heart and contracts to circulate blood.
What does elasticity mean?
elasticity means allows the muscle to return to its original.
What does flexion mean?
Flexion means decreasing the angle between two bones, or bending a body part.
What does origin mean?
origin means the end that does not move
What does supination mean?
supination means turning a body part upward.
What does circumduction mean?
circumduction means moving in a circle at a joint.
What does excitability mean?
excitability means irritability, the ability to respond to a stimulus such as a nerve impulse
What does insertion mean?
insertion means The end that moves when the muscle contracts.
What does plantar flexion mean?
plantar flexion means bending forward or bending the foot away from the knee.
What does tendons mean?
tendons means which are strong, tough, fibrous.
What does contractibility mean?
contractibility means muscle fibers that are stimulated by nerves contract.
What does extensibility mean?
extensibility means the ability to be stretched.
What does involuntary mean?
involuntary means Muscle spasms, or cramps, are sudden, painful.
What does pronation mean?
pronation means turning a body part downward Supination.
What does visceral muscle mean?
visceral muscle means also called smooth muscle.