Mr. Nasheed has cerebral palsy and suffers severe skeletal muscle spasms as a result of his condition. He is prescribed the drug dantrolene, which prevents the release of Ca2+ from the SR. Explain how this will treat his muscle spasms.

Video transcript

Hey, everyone. Let's take a look at this question together. What role does the sarcoplasmic reticulum play in muscles? Is it answer choice. A the storage of a TP answer choice. B, the storage of calcium ions. Answer choice C, the storage of glycogen or answer choice D all of the above. Let's work this problem out together to try to figure out which of the following answer choices best explains the role of the sarcoplasmic reticulum in muscles. So in order to solve this question, we have to recall what we have learned about the sarcoplasmic reticulum and the role that the sarcoplasmic reticulum plays in muscles. And we can recall that the sarcoplasmic reticulum is a complex network of specialized smooth endoplasmic reticulum, which that network of the specialized smooth endoplasmic reticulum is important for the transmission of electrical impulses as well as calcium ion storage. So the role that the sarcoplasmic reticulum plays in muscles is the transmission of electrical impulses and calcium ion storage. And looking at our answer choices, we see answer choice B which says the storage of calcium ions, which is a role that the sarcoplasmic reticulum plays in muscles. So, answer choice B is the correct answer. And all other answer choices are incorrect since the sarcoplasmic reticulum does not play a role in the storage of A TP or the storage of glycogen. So answer choice B is the only correct answer choice. I hope you found this video to be helpful. Thank you and goodbye.