Once excitation-contraction coupling has occurred, calcium ion concentration increases dramatically in the:
A) cytosol of the muscle fiber. B) sarcoplasmic reticulum.
C) sarcolemma. D) terminal cisterna.
Answer: A
You might also like to view...
While baking a pizza, you accidentally push your arm against the top of the oven while trying to remove it. The area becomes very red, and shortly after the injury, a large blister forms. While it is painful and warm, the burn isn't dry or leathery and the skin isn't blanched white or charred black. This is a type of burn called a ________ burn.
What will be an ideal response?
This figure shows a frontal section of the kidney. What structure does number 5 indicate?
A. Renal medulla B. Renal lobe C. Renal sinus D. Renal pyramid E. Renal cortex
In the temporomandibular joint, a pad of fibrocartilage called the ________ divides the synovial cavity into two separate chambers.
A. mandibular partition B. articular disc C. meniscus D. coronoid capsule E. sphenomandibular ligament
A breathing pattern that eliminates too much CO2 is called hyperventilation.
Indicate whether the statement is true or false.