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Physiology

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Nerve Muscle Physiology

Question
17 out of 19
 

In severe exercise muscle spasm occurs due to



A Accumulation of K+

B Accumulation of Acetycholine

C Accumulation of Ca++

D Depletion of ATP

Ans. A Accumulation of K+

Muscle spasm: ­

a. Spinal cord reflexes that causes muscle spasm.

b. Muscle cramps (= muscle spasm) a type of local spam is the typical muscle cramp. Any local iritating factor or metabolic abnormality of a muscle, such as severe cold, lack of blood flow to the muscle, or over exercise of the muscle, can elicit pain or other types of sensory impulses that are transmitted from muscle to the spinal cord, thus causing reflex muscle contraction.

c. During Exercise Local mechanism maintaining a high blood flow in exercising muscle include a fall tissue PO2 (hypoxia), arise in tissue PCO2 (H+) an accumulation of K+and other vasodilator metabolites, Also due to in temp.

Nerve Muscle Physiology Flashcard List

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