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PT203 Quiz 2
Quiz 2 Material
Term | Definition |
---|---|
muscle tone | keeps the body in position |
tendon | a bond of connective tissue that attaches a muscle to a bone |
neuromuscular junction | a point at which a nerve fiber contacts a muscle cell |
contractility | a muscle fiber's capacity to undergo shortening and to change its shape, becoming thicker |
insertion | the attachment to the body part that the muscle puts into action |
antagonist | a muscle that produces an opposite movement to that of the prime mover |
synergists | a helping muscle, they work with the prime movers to accomplish a movement |
orbicularis oculi | encircles eyelid |
intercostal muscles | attach to and fill the spaces between the ribs |
my/o | muscle |
brachi/o | arm |
quadr/i | four |
neurotransmitter | a chemical classified to release from a neuron to stimulate the muscle fiber |
origin | muscle attachment connected to a nonmoving part |
deltoid | covers the shoulder joint to the lateral humerus. Abducts the arm. |
gastrocnemius | calf of the leg, to calcaneus, inserting by the Achilles tendon, plantar flexes foot at ankle |
tibialis anterior | anterior and lateral shin, to foot |