Chapter 20: Part 2

Compared to the right ventricle, the left ventricle has all the following characteristics except A) has a thicker wall. B) is round in cross section. C) pumps a greater volume. D) works harder. E) produces about four to six times more pressure when it contracts.

pumps a greater volume.

Coronary veins empty into the A) left atrium. B) left ventricle. C) right atrium. D) right ventricle. E) conus arteriosus.

right atrium.

The marginal branch and posterior interventricular branch are branches of the A) right coronary artery. B) left coronary artery. C) circumflex artery. D) coronary sinus. E) aorta.

right coronary artery.

The function of an atrium is to A) store blood for use by the myocardial cells. B) pump blood to the lungs. C) pump blood into the systemic circuit. D) pump blood to the ventricle. E) collect blood then pump it to the ventricle.

collect blood then pump it to the ventricle.

As blood leaves the right ventricle, it passes through the ________ and then into the pulmonary trunk. A) pulmonary veins B) conus arteriosus C) aorta D) inferior vena cava E) superior vena cava

conus arteriosus

The first blood vessels to branch from the aorta are the ________ arteries. A) pulmonary B) coronary C) circumflex D) carotid E) subclavian

coronary

The pulmonary veins carry blood to the A) heart. B) lungs. C) brain. D) intestines. E) liver.

heart.

The foramen ovale in the fetal heart is located in the A) right atrium. B) left atrium. C) right ventricle. D) left ventricle. E) interatrial septum.

interatrial septum.

Blood is supplied to the muscular wall of the left atrium by the A) brachiocephalic artery. B) right coronary artery. C) left coronary artery. D) phrenic arteries. E) pulmonary arteries.

left coronary artery.

The pulmonary arteries carry blood to the A) heart. B) lungs. C) brain. D) intestines. E) liver.

lungs.

Rupture of the papillary muscles in the left ventricle may result in A) pulmonary valve regurgitation. B) mitral valve prolapse. C) tricuspid regurgitation. D) tricuspid prolapse. E) aortic valve prolapse.

mitral valve prolapse.

The right pulmonary veins carry ________ blood to the ________. A) deoxygenated; left atrium B) oxygenated; right lung C) deoxygenated; superior vena cava D) deoxygenated; right atrium E) oxygenated; left atrium

oxygenated; left atrium

The pulmonary valve prevents backward flow into the A) aorta. B) pulmonary trunk. C) pulmonary veins. D) right ventricle. E) left atrium.

right ventricle.

There are ________ pulmonary veins. A) 2 B) 4 C) 6 D) 8 E) 12

4

The following is a list of vessels and structures that are associated with the heart. What is the correct order for the flow of blood entering from the systemic circulation? 1. right atrium 2. left atrium 3. right ventricle 4. left ventricle 5. venae cavae 6. aorta 7. pulmonary trunk 8. pulmonary veins A) 1, 2, 7, 8, 3, 4, 6, 5 B) 1, 7, 3, 8, 2, 4, 6, 5 C) 5, 1, 3, 7, 8, 2, 4, 6 D) 5, 3, 1, 7, 8, 4, 2, 6 E) 5, 1, 3, 8, 7, 2, 4, 6

5, 1, 3, 7, 8, 2, 4, 6 venae cavae right atrium right ventricle pulmonary trunk pulmonary veins left atrium left ventricle aorta

Cardiac cells damaged by infarction will show all of the following except A) a switch to anaerobic metabolism. B) release of enzymes into the circulation. C) release of troponin T and I into the circulation. D) release of CK-MB into the circulation. E) an increase in metabolic activity.

an increase in metabolic activity.

The bicuspid or mitral valve is located A) in the opening of the aorta. B) in the opening of the pulmonary trunk. C) where the venae cavae join the right atrium. D) between the right atrium and right ventricle. E) between the left atrium and left ventricle.

between the left atrium and left ventricle.

The ________ valve prevents backward flow into the left atrium. A) semicaval B) semilunar C) bicuspid D) tricuspid E) pulmonic

bicuspid

Which of the following are involved in the pulmonary circuit? A) superior vena cava, right atrium, left ventricle B) right ventricle, pulmonary veins, aorta C) right ventricle, pulmonary trunk, left atrium D) inferior vena cava, right atrium, aorta E) left ventricle, pulmonary veins, right atrium

right ventricle, pulmonary trunk, left atrium

Blood is supplied to the myocardium by A) the coronary sinus. B) contact with blood in the pumping chambers. C) the coronary arteries. D) arteries that branch from the pulmonary arteries. E) arteries that branch off the subclavian arteries.

the coronary arteries.