Any detailed explanation for all parts of this question would be very helpful. T

Question

Any detailed explanation for all parts of this question would be very helpful. Thank you to anyone willing to help out. This question relates to cell biology.

1.) Discuss the role of calcium in the contraction of striated skeletal muscle contraction and smooth muscle. Clearly discuss how Ca2+ release is triggered and the effects of the Ca2+ inside the cell in each case. Also discuss why sometimes a person may experience some involuntary “twitching” of skeletal muscle after consuming large amounts of caffeinated drinks.

Explanation / Answer

Ca++ play important role in contraction of muscle.The membrane of fiber will depolarize the positively charged sodium ions which enters and triggering an action potential that spreads to the rest of all membrane than it will depolarize, including the T-tubules. This triggers the release of calcium ions from storage in the sarcoplasmic reticulum (SR). The Ca++ then initiates contraction.

When we take caffeine in high amount than it will stimulate the part of muscle and caffeine provide high energy also this results in twitching of muscle.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.