2.If you were running an experiment and interrupted the interaction between thin and thick filaments, what would be the most likely result on sarcomere contraction? This is a multiple choice question choose the answer from the choices below A.The sarcomere would still contract causing the H zone to disappear B.The sarcomere would still contract causing the H zone to disappear. C.The sarcomere would not be able to contract therefore the H zone would remain the same in size. D.The sarcomere would not be able to contract therefore the H zone would reduce in size.

Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the process of “muscle excitation"), and (2) how the electrical impulse travels into he T-tubules and causes calcium to be released from the sarcoplasmic retículum (this is the process of “excitation-contraction coupling"): OMADidoinos reticulum 5. se mo S1e hosph erah anism

2. You cut the axon of a single motor neuron innervating the biceps muscle. Which of the following is true?a. The biceps muscle will no longer be able to contractb. Only one muscle fiber in the biceps will be unable to contractc. All muscle fibers in the biceps innervated by that motor neuron will no longer be able to contractd. There will be no effect since each muscle fiber is innervated by multiple motor neurons 3. Which of the following will produce the LARGEST force of twitch contraction? Explain your answer.a. Stimulation of all alpha motor neurons in a muscleb. Stimulation of all alpha motor neurons plus all gamma motor neurons in a musclec. Both stimulations will cause a similar force of twitch contraction   4. A patient, like Ian Waterman, who has lost all muscle proprioceptor neurons. Which reflexes will be absent inthis patient? 5. You have found a new type of sensory neuron that senses ammonia. If this sensory neuron worked like thesensory neurons we studied in class, how…

In a fully contracted sarcomere, the actin myofilaments A. Form the H zone B. Form a Z disc C. Overlap D. Dissapear

Put the following items in order of decreasing size: 63. Sección Largest 64. 65. 66. 67. Smallest A. Calcium В. Мyofibril C. Myofilament D. Sarcomere E. Tropomyosin

Option A is wrong, please give correct answer

The power stroke of muscle contraction occurs as the myosin head pivots toward its tail and the thin filament slides along the length of the thick filament. A. true  B. false

3. There are three types of skeletal muscles we discussed in class. a. List all 3 b. All of these skeletal muscle types utilize Ca²+ at some point during excitation, excitation contraction coupling, and contraction. Describe the role of Ca²+ in stimulation to skeletal muscle excitation to contraction. c. List at least 2 other features of skeletal muscle types that you can compare across all three types. OC

The fewer muscle fibers present in a motor unit and the greater the number of motor units in a muscle as a whole: 1. the less likely these muscle fibers will fatigue. 2. the less likely an action potential will be generated in the muscle fibers of that motor unit. 3. the stronger the contractions of muscle fibers in that motor unit.

1. This term describes the resting state of a muscle. A. muscle tone B. none of the other choices are correct C. muscle atrophy D. motor unit