BIOL 252 Human Anatomy & Physiology II w Lab Module 4 Exam Review 70+
Questions .
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SECTION A: CARDIOVASCULAR SYSTEM – HEART ANATOMY (Questions 1-45)
Question 1
Which layer of the heart is also known as the visceral pericardium?
A) Myocardium
B) Endocardium
C) Epicardium
D) Fibrous pericardium
Answer: C
Rationale: The epicardium is the outermost layer of the heart wall and is
continuous with the visceral pericardium. The myocardium is the muscular middle
layer, and the endocardium lines the inner chambers .
Question 2
,Which chamber of the heart receives deoxygenated blood from the superior and
inferior vena cava?
A) Right ventricle
B) Left atrium
C) Right atrium
D) Left ventricle
Answer: C
Rationale: The right atrium receives deoxygenated blood returning from the
systemic circulation via the superior vena cava (from the upper body), inferior
vena cava (from the lower body), and the coronary sinus (from the heart itself) .
Question 3
The bicuspid (mitral) valve is located between the:
A) Right atrium and right ventricle
B) Left atrium and left ventricle
C) Left ventricle and aorta
D) Right ventricle and pulmonary trunk
,Answer: B
Rationale: The bicuspid (mitral) valve is the left atrioventricular valve, located
between the left atrium and left ventricle. It has two cusps and prevents backflow
into the left atrium during ventricular contraction .
Question 4
Which structure prevents backflow of blood from the aorta into the left ventricle?
A) Pulmonary semilunar valve
B) Tricuspid valve
C) Aortic semilunar valve
D) Mitral valve
Answer: C
Rationale: The aortic semilunar valve is located at the base of the aorta. It opens
during ventricular systole to allow blood ejection into the aorta and closes during
diastole to prevent backflow into the left ventricle .
Question 5
, The papillary muscles and chordae tendineae function to:
A) Open the AV valves during atrial contraction
B) Pump blood into the ventricles
C) Prevent eversion of the AV valves during ventricular contraction
D) Generate the heart's electrical impulse
Answer: C
Rationale: The chordae tendineae anchor the AV valve cusps to the papillary
muscles. When the ventricles contract, the papillary muscles contract, pulling the
chordae tendineae tight to prevent the valve cusps from prolapsing into the atria .
Question 6
Which of the following correctly traces the path of blood flow through the heart
and lungs?
A) Right atrium → right ventricle → pulmonary trunk → pulmonary arteries →
lungs → pulmonary veins → left atrium → left ventricle → aorta
B) Right atrium → left atrium → pulmonary artery → lungs → pulmonary veins →
right ventricle → aorta
Questions .
.
SECTION A: CARDIOVASCULAR SYSTEM – HEART ANATOMY (Questions 1-45)
Question 1
Which layer of the heart is also known as the visceral pericardium?
A) Myocardium
B) Endocardium
C) Epicardium
D) Fibrous pericardium
Answer: C
Rationale: The epicardium is the outermost layer of the heart wall and is
continuous with the visceral pericardium. The myocardium is the muscular middle
layer, and the endocardium lines the inner chambers .
Question 2
,Which chamber of the heart receives deoxygenated blood from the superior and
inferior vena cava?
A) Right ventricle
B) Left atrium
C) Right atrium
D) Left ventricle
Answer: C
Rationale: The right atrium receives deoxygenated blood returning from the
systemic circulation via the superior vena cava (from the upper body), inferior
vena cava (from the lower body), and the coronary sinus (from the heart itself) .
Question 3
The bicuspid (mitral) valve is located between the:
A) Right atrium and right ventricle
B) Left atrium and left ventricle
C) Left ventricle and aorta
D) Right ventricle and pulmonary trunk
,Answer: B
Rationale: The bicuspid (mitral) valve is the left atrioventricular valve, located
between the left atrium and left ventricle. It has two cusps and prevents backflow
into the left atrium during ventricular contraction .
Question 4
Which structure prevents backflow of blood from the aorta into the left ventricle?
A) Pulmonary semilunar valve
B) Tricuspid valve
C) Aortic semilunar valve
D) Mitral valve
Answer: C
Rationale: The aortic semilunar valve is located at the base of the aorta. It opens
during ventricular systole to allow blood ejection into the aorta and closes during
diastole to prevent backflow into the left ventricle .
Question 5
, The papillary muscles and chordae tendineae function to:
A) Open the AV valves during atrial contraction
B) Pump blood into the ventricles
C) Prevent eversion of the AV valves during ventricular contraction
D) Generate the heart's electrical impulse
Answer: C
Rationale: The chordae tendineae anchor the AV valve cusps to the papillary
muscles. When the ventricles contract, the papillary muscles contract, pulling the
chordae tendineae tight to prevent the valve cusps from prolapsing into the atria .
Question 6
Which of the following correctly traces the path of blood flow through the heart
and lungs?
A) Right atrium → right ventricle → pulmonary trunk → pulmonary arteries →
lungs → pulmonary veins → left atrium → left ventricle → aorta
B) Right atrium → left atrium → pulmonary artery → lungs → pulmonary veins →
right ventricle → aorta
