Essentials Of Human Anatomy and Physiology - With Access and CD
11th Edition
ISBN: 9780133919790
Author: Marieb
Publisher: PEARSON
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Chapter 6, Problem 4MC
Summary Introduction
Introduction:
The extensive exercise of the muscles leads to the condition of the muscle fatigue. The muscle fatigue is a condition which results due to the absence of the muscle contraction. The muscles are unable to contract even in the presence of the muscle contracting stimulus. Due to the extreme exercise and lack of rest, the contracting ability of the muscles gradually weakens.
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Which of the following does NOT contribute to muscle fatigue?A. K+ accumulation
B. ADP and phosphate accumulation
C. depleted neurotransmitter
D. depleted fuel
The excess ATPs are stored in muscles as CPs?
A. True
B. False
Muscle fatigue is caused by ________. a. buildup of ATP and lactic acid levels b. exhaustion of energy reserves and buildup of lactic acid levels c. buildup of ATP and pyruvic acid levels d. exhaustion of energy reserves and buildup of pyruvic acid levels
Chapter 6 Solutions
Essentials Of Human Anatomy and Physiology - With Access and CD
Ch. 6 - More than one choice may apply. Identify the...Ch. 6 - Prob. 2MCCh. 6 - More than one choice may apply. Which of the...Ch. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - 6. Which of the following muscles attach to the...Ch. 6 - Which of these thigh muscles causes movement at...Ch. 6 - 8. Which of the following insert on the...Ch. 6 - What is major function of muscle?Ch. 6 - Compare skeletal, smooth, and cardiac muscles in...
Ch. 6 - Prob. 11SAECh. 6 - Prob. 12SAECh. 6 - Prob. 13SAECh. 6 - Describe how a neurotransmitter is released into...Ch. 6 - Prob. 15SAECh. 6 - Prob. 16SAECh. 6 - Prob. 17SAECh. 6 - Prob. 18SAECh. 6 - Prob. 19SAECh. 6 - Prob. 20SAECh. 6 - If you were alternately contracting and relaxing...Ch. 6 - The sternocleidomastoid muscles help to flex the...Ch. 6 - Prob. 23SAECh. 6 - Name the prime mover of elbow flexion. Name its...Ch. 6 - Prob. 25SAECh. 6 - The hamstring and quadriceps muscle groups are...Ch. 6 - 27. What two-bellied muscle makes up the calf...Ch. 6 - 28. What happens to muscles when they are...Ch. 6 - Prob. 29SAECh. 6 - 30. Should a triathlete engage in aerobic or...Ch. 6 - Prob. 31CAQCh. 6 - Phil loved to play squash. During a particularly...Ch. 6 - While painting her house, Susan fell off the...Ch. 6 - Prob. 34CAQCh. 6 - 37. Chemical A binds and blocks acetylcholine...
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- Explain why (a) calcium ions and (b) ACh are vital for muscle contraction.arrow_forwardWhich of the following would be recruited in a muscle stimulation when contractile strength increases? A) Many small motor units with the ability to stimulate other motor units B) Motor units with the longest muscle fibers C) Motor units with larger, less excitable neurons D) Large motor units with small, highly excitable endurancearrow_forwardIn an isometric contraction, the muscle develops tension but does not: a. Expend energy.b. Exhibit elasticity.c. Lengthen.d. Conduct electrical current.e. Widenarrow_forward
- A bacterial toxin is known to block the release of ACh at the motor end plate of skeletal muscle. Consequently, a. the skeletal muscle contracts with increasing force. b. the skeletal muscle contracts with increasing frequency. c. the ability to stimulate the muscle is impaired. d. other neurotransmitters would stimulate the muscle.arrow_forwardGraph A in this diagram represents A) summation and tetanus of a smooth muscle fibre. C) a simple skeletal muscle twitch c) summation and tetanus of a skeletal muscle fibre. D)simple smooth muscle twitch.arrow_forwarda) Describe how the isolated muscle behaved as it was stretched progressively. b) What effect does stretching the muscle have on contraction strength? Is this effect linear? c) What stretch resulted in the highest contraction force? What happens to the muscle at the highest stretch levels?arrow_forward
- A decline in a skeletal muscle's ability to maintain a constant level of force or tension after prolonged repetitive stimulations is called A. complete tetanus B. recruitment C. fatique D. rigor mortisarrow_forwardUnlike skeletal muscle cells, cardiac muscle cells________." A do not use the sliding filament mechanism of contraction B are not striated C do not rely on an influx of Ca+2 for contraction to occur D do not require neural stimulation to contractarrow_forwardStarting with the release of calcium from the SR, explain muscle contraction.arrow_forward
- Describe the changes that occur in skeletal muscle as a result of endurance training. Include a brief discussion on how endurance training improves acid-base balance during exercise. What physiological benefits may happen for an older adult who begins a progressive resistance-training program?arrow_forwardIn a skeletal muscle fiber, Ca2+ is released from a. ACh receptors. b. the motor end plate. c. the sarcoplasmic reticulum. d. the sarcolemma and T-tubules.arrow_forwardIdentify which muscle fiber types would be recruited for each of the following functions. Explain your answer. a. walking b. standing c. lifting a heavy object and immediately putting it downarrow_forward
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