When a muscle is stimulated to contract, calcium release channels in the SR will release Ca2+ via ________.
A. facilitated diffusion
B. simple diffusion
C. exocytosis
D. active transport
Answer: B
You might also like to view...
Hemolysis refers to the inability of swollen erythrocytes to transport O2 efficiently
Indicate whether the statement is true or false
Why is a CNS neuron not usually replaced after it is injured?
A) Most CNS neurons are not replaced because we have an abundance of neurons and it is not necessary to replace any that are injured. B) Most CNS neurons are not replaced because the PNS neurons just take over the functions of any injured CNS neurons. C) Most CNS neurons are not replaced because it is not possible to replace any injured cell in the body. D) Most CNS neurons are not replaced because they contain Nissl bodies which prevents the cell from undergoing cellular division. E) Most CNS neurons are not replaced because they lack centrioles so they cannot divide.
One of the most important risk factors for kidney disease is ________.
A. hypertension B. use of ACE inhibitors C. hypotension D. vasodilation
A fracture in the shaft of a bone would be a break in the ________.
diaphysis metaphysis articular cartilage epiphysis