This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The following channal is responsible for release of calcium 
Select and explain. 
A. Ryanodin receptor, B. SERCA, C. Both, D. None
A: Ryanodin receptor
Answer: A: Ryanodin receptor 
Explanation: Ryanodine receptor is responsible for release of calcium SERCA helps in uptake and storage of calcium in sarcoplasmic reticulum Ref:Guyton and Hall textbook of medical physiology 12th edition,page number: 86,87