A typical action potential of a myocardial contractile cell lasts ________ millisecond(s).

A) at least 200
B) 1-5
C) at least 500
D) 50-100
E) less than 1


A) at least 200

Anatomy & Physiology

You might also like to view...

Using the figure below, identify the labeled part.


1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
9) Label I: ______________________________
10) Label J: ______________________________
11) Label K: ______________________________
12) Label L: ______________________________
13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________

Anatomy & Physiology

When a muscle contracts, there may be another muscle that contracts along with it. Which of the following terms describes that type of muscle?

A) origin B) insertion C) antagonist D) synergist

Anatomy & Physiology

Down syndrome is due to an extra

A. X chromosome. B. autosome. C. Y chromosome. D. X chromosome or an extra Y chromosome.

Anatomy & Physiology

The pulmonary trunk splits into what structure, taking blood to the lungs?

A. Pulmonary trunk B. Pulmonary veins C. Pulmonary valve D. Pulmonary arteries

Anatomy & Physiology