Answer:ryanodine receptor, or RYR) in the sarcoplasmic reticulum (SR), causes opening of the RYR. In cardiac muscle, opening of the L-type calcium channel permits influx of calcium into the cell
Explanation:
The correct answers are 1, 2 and 4
I am sure that it is Typhoons which is a tropical storm in the region of the Indian or western Pacific oceans.
I guess the stomach is held in place by a variety of Muscle cells, Epithelial cells, and connecting tissues; so the answer is: all of the above.
