During a cardiac cycle, how many of the four chambers contract at any one time?
A. 1
B. 2
C. 4
D. Highly variable, depending on the heart beat rate
E. None of these answers is correct.
Answer: B
You might also like to view...
The ________ is the lateral bone of the leg.
Fill in the blank(s) with the appropriate word(s).
In terms of Ohm's law, three factors vary during an action potential. Which of the following factors is NOT constant during voltage-clamp operations?
a. current b. membrane potential c. equilibrium potential d. None of these answers the question.
When tissues are producing more CO2 through increased metabolic activity, less O2 is provided to those tissues.
Answer the following statement true (T) or false (F)
With damage to nerve fibers, larger distances between the site of damage and the target structure innervated result in ________ chances of successful regeneration.
A. decreased B. increased