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BIOD 152 LAB 4 – CIRCULATORY SYSTEM: BLOOD FLOW TRACINGS
Practice Exam with Verified Answers & Rationales
Question 1
Which valve is located between the right atrium and right
ventricle?
A. Mitral valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonary valve
Answer: B
Rationale: The tricuspid valve (right atrioventricular valve) is
located between the right atrium and right ventricle.
Question 2
Which valve is located between the left atrium and left
ventricle?
A. Tricuspid valve
B. Pulmonary valve
C. Mitral (bicuspid) valve
D. Aortic valve
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Answer: C
Rationale: The mitral (bicuspid) valve is the left atrioventricular
valve, located between the left atrium and left ventricle.
Question 3
Which valve prevents backflow from the pulmonary artery into
the right ventricle?
A. Aortic valve
B. Pulmonary semilunar valve
C. Tricuspid valve
D. Mitral valve
Answer: B
Rationale: The pulmonary semilunar valve is located at the base
of the pulmonary artery and prevents backflow into the right
ventricle.
Question 4
Which valve prevents backflow from the aorta into the left
ventricle?
A. Pulmonary valve
B. Aortic semilunar valve
C. Mitral valve
D. Tricuspid valve
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Answer: B
Rationale: The aortic semilunar valve is located at the base of
the aorta and prevents backflow into the left ventricle.
Question 5
Which chamber receives deoxygenated blood from the systemic
circulation?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: B
Rationale: The right atrium receives deoxygenated blood from
the superior vena cava, inferior vena cava, and coronary sinus.
Question 6
Which chamber pumps blood into the pulmonary trunk?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: D
Rationale: The right ventricle pumps deoxygenated blood
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through the pulmonary semilunar valve into the pulmonary
trunk.
Question 7
Which chamber receives oxygenated blood from the pulmonary
veins?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: A
Rationale: The left atrium receives oxygenated blood from the
four pulmonary veins.
Question 8
Which chamber pumps blood into the aorta?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: C
Rationale: The left ventricle pumps oxygenated blood through
the aortic semilunar valve into the aorta.
BIOD 152 LAB 4 – CIRCULATORY SYSTEM: BLOOD FLOW TRACINGS
Practice Exam with Verified Answers & Rationales
Question 1
Which valve is located between the right atrium and right
ventricle?
A. Mitral valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonary valve
Answer: B
Rationale: The tricuspid valve (right atrioventricular valve) is
located between the right atrium and right ventricle.
Question 2
Which valve is located between the left atrium and left
ventricle?
A. Tricuspid valve
B. Pulmonary valve
C. Mitral (bicuspid) valve
D. Aortic valve
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Answer: C
Rationale: The mitral (bicuspid) valve is the left atrioventricular
valve, located between the left atrium and left ventricle.
Question 3
Which valve prevents backflow from the pulmonary artery into
the right ventricle?
A. Aortic valve
B. Pulmonary semilunar valve
C. Tricuspid valve
D. Mitral valve
Answer: B
Rationale: The pulmonary semilunar valve is located at the base
of the pulmonary artery and prevents backflow into the right
ventricle.
Question 4
Which valve prevents backflow from the aorta into the left
ventricle?
A. Pulmonary valve
B. Aortic semilunar valve
C. Mitral valve
D. Tricuspid valve
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Answer: B
Rationale: The aortic semilunar valve is located at the base of
the aorta and prevents backflow into the left ventricle.
Question 5
Which chamber receives deoxygenated blood from the systemic
circulation?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: B
Rationale: The right atrium receives deoxygenated blood from
the superior vena cava, inferior vena cava, and coronary sinus.
Question 6
Which chamber pumps blood into the pulmonary trunk?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: D
Rationale: The right ventricle pumps deoxygenated blood
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through the pulmonary semilunar valve into the pulmonary
trunk.
Question 7
Which chamber receives oxygenated blood from the pulmonary
veins?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: A
Rationale: The left atrium receives oxygenated blood from the
four pulmonary veins.
Question 8
Which chamber pumps blood into the aorta?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer: C
Rationale: The left ventricle pumps oxygenated blood through
the aortic semilunar valve into the aorta.
