Heart valves serve what purpose?

A) They prevent oxygenated blood from flowing through the coronary arteries.
B) They control the heart's electrical signals.
C) They prevent blood from flowing forward.
D) They prevent backflow of blood.

D

Health Professions

You might also like to view...

What practice that is regulated by the FDA is described as physicians prescribing approved medications for use other than their intended indication?

A) Off-label usage B) Unintended usage C) Unintended consequences D) Malpractice

Health Professions

Which requires less radiation to produce an image, digital or conventional film-based radiographs?

What will be an ideal response?

Health Professions