BIOL 252 Module 9 Exam: Cardiovascular System (Human Anatomy & Physiology II – Portage Learning)

BIOL 252 Module 9 Exam: Cardiovascular System
(Human Anatomy & Physiology II – Portage Learning)




Total Questions: 75


PART I: Multiple Choice (1–45)



**1. The heart is located in the:**

A. Pleural cavity

B. Mediastinum

C. Peritoneal cavity
D. Thoracic inlet



**2. The layer of the heart wall responsible for contraction is the:**
A. Endocardium

B. Epicardium

C. Myocardium

D. Pericardium


**3. The visceral layer of the serous pericardium is also called the:**

A. Fibrous pericardium

B. Epicardium
C. Myocardium

,D. Endocardium



**4. Blood enters the right atrium from the:**

A. Pulmonary veins
B. Aorta

C. Superior and inferior vena cava

D. Pulmonary trunk



**5. The valve between the right atrium and right ventricle is the:**

A. Mitral valve

B. Aortic valve

C. Tricuspid valve
D. Pulmonary valve



**6. The valve between the left atrium and left ventricle is the:**

A. Tricuspid valve

B. Mitral valve

C. Pulmonary valve

D. Aortic valve


**7. The thickest chamber of the heart is the:**

A. Right atrium

B. Left atrium

C. Right ventricle

D. Left ventricle


**8. The pulmonary arteries carry:**

, A. Oxygenated blood to lungs

B. Deoxygenated blood to lungs

C. Oxygenated blood to body

D. Deoxygenated blood to body


**9. Oxygenated blood returns from the lungs through the:**

A. Pulmonary arteries

B. Vena cava

C. Pulmonary veins

D. Coronary sinus



**10. The first heart sound (lub) is caused by closure of the:**
A. Semilunar valves

B. AV valves

C. Aortic valve only

D. Pulmonary valve only



**11. The pacemaker of the heart is the:**

A. AV node
B. Bundle of His

C. SA node

D. Purkinje fibers



**12. The AV node delays the impulse to allow:**

A. Ventricular contraction first

B. Atrial contraction to complete
C. Faster heart rate