Question

15 blood entering the right atrium comes from what structure(s)? multiple choice right ventricle pulmonary trunk venae cavae and coronary sinus pulmonary veins

Explanation:

De - oxygenated blood enters the right atrium. The superior and inferior venae cavae bring blood from the body, and the coronary sinus brings blood from the heart's own tissues.

Answer:

C. Venae cavae and coronary sinus