Heart Chapter 20 Questions

Question 1

The great cardiac vein drains blood from the heart muscle to the
(a) left ventricle
(b) right ventricle
(c) right atrium
(d) left atrium

Answer 1

(c) right atrium

Question 2

The autonomic centers for cardiac function are located in
(a) the myocardial tissue of the heart
(b) the cardiac centers of the medulla oblongata
(c) the cerebral cortex
(d) all of these structures

Answer 2

(b) the cardiac centers of the medulla oblongata

Question 3

The serous membrane covering the outer surface of the heart is the
(a) parietal layer of the serous pericardium
(b) endocardium
(c) myocardium
(d) visceral layer of the serous pericardium

Answer 3

(d) visceral layer of the serous pericardium

Question 4

The simple squamous epithelium covering the heart valves is the
(a) epicardium
(b) endocardium
(c) myocardium
(d) endothelium

Answer 4

(d) endothelium