Myocardial cells exhibit a plateau phase instead of quickly repolarizing. This is due to
A.inward diffusion of calcium through slow Ca2+ channels.
B.inward diffusion of sodium through fast Na+ channels.
C.inward diffusion of potassium through voltage-gated K+ channels.
D.outward pumping of sodium by the Na+/K+ pump.
Which of the following is NOT part of the organ of Corti?
D.hair cells with sensory fibers
The final protein that forms a blood clot is