01 pts Question 5 Suppose the extracellular fluid around the

0/1 pts Question 5 Suppose the extracellular fluid around the gastrocnemius muscle in a frog\'s leg is altered so it contains no calcium. How will this affect the ability of that skeletal muscle to contract? The muscle fibers will still be able to contract, but they will require a higher than normal stimuli to reach threshold It will not affect the contraction of skeletal muscle fibers since they don\'t need calciunm to contract The skeletal muscle fibers will be unable to contract, because the somatic motor neurons would be unable to release acetylcholine onto the muscle fibers. It will not affect the contraction abilities because skeletal muscle fibers contain their own internal store of calcium. The muscle fibers will be unable to contract because they require an external source of calcium to contract

Solution

Ans:

The skeletal muscle fibers will be unable to contract, because the somatic motor neurons would be unable to release acetylcholine onto the muscle fibers.

Ans: The skeletal muscle fibers will be unable to contract, because the somatic motor neurons would be unable to release acetylcholine onto the muscle fibers.

Without calcium, ACh will not released into NMJ, and consequently there will be no muscle contraction.