Name Muscle Physiology Date Section A. Matching Match each term listed on the le

Question

Name Muscle Physiology Date Section A. Matching Match each term listed on the left with its correct description on the right. 1. isometric contraction A. fusion of twitches B. tension changes more than length C. activating more motor units D. shift in transmembrane potential toward 0 mV E. contraction with no relaxation cycles 2. complete tetanus 3. repolarization 4. acetylcholine 5. fatigue 6. isotonic contraction F. response to single stimulus 7. depolarization 8. latent period G. length changes more than tension H. contraction with rapid relaxation cycles I. neurotransmitter 9. wave summation 10. incomplete tetanus 11. twitch 12. recruitment J. time prior to tension K. reduction in contraction and performance L. return of membrane to resting potential Descriptions ce sauessing mes of muscle contraction

Explanation / Answer

J      because when muscles don't shorten, muscle stays the same length A    because also known as fused L      because change in membrane potential return towards negative I      because stimulates skeletal muscle cells, fusing to receptors that open the Na+ pathways. K      because when a muscle is unable to contract even though it is still being stimulated. G      because Isotonic muscle contractions can be either concentric or eccentric. D      because change in membrane potential F       because the delay between the receipt of a stimulus by a sensory nerve H     because receives a second stimulus before it has relaxed B      because stimuli are sent at a fast rate E     because a rapid contraction in response to a single C     because an increase in contractile strength in a muscle

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