Anatomy and Physiology II with Lab
(BIOS252) – Chamberlain University –
Exam 1 Review (2023/2024)
Exam Overview
• Course: BIOS252 – Anatomy & Physiology II With Lab
• Curriculum Year: 2023/2024
• Institution: Chamberlain University
• Exam Focus: Structure and function of the cardiovascular, respiratory, renal, and
endocrine systems
• Question Types: Multiple-choice questions with four answer choices (A–D)
• Total Questions: 120
• Sections:
o Cardiovascular System: 30 questions
o Respiratory System: 30 questions
o Renal System: 30 questions
o Endocrine System: 20 questions
o Lab-Based Applications: 10 questions
• Format: Professional, exam-ready structure with correct answers in blue and detailed
rationales
• Purpose: Prepare students for theoretical and practical components, emphasizing
anatomical identification, physiological processes, and clinical correlations
Question Bank
Cardiovascular System (Questions 1–30)
1. What is the primary function of the sinoatrial (SA) node?
A. Pump blood to the lungs
B. Initiate the cardiac cycle
C. Regulate blood pressure
D. Prevent backflow of blood
Answer: B. Initiate the cardiac cycle.
2. Which blood vessel carries deoxygenated blood from the right ventricle to the
lungs?
A. Aorta
B. Pulmonary artery
C. Pulmonary vein
D. Superior vena cava
Answer: B. Pulmonary artery.
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3. What structure separates the right and left ventricles?
A. Atrioventricular septum
B. Interventricular septum
C. Pericardium
D. Chordae tendineae
Answer: B. Interventricular septum.
4. Which heart valve prevents backflow from the aorta to the left ventricle?
A. Mitral valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonary valve
Answer: C. Aortic valve.
5. What is the primary component of blood responsible for oxygen transport?
A. Plasma
B. Platelets
C. Red blood cells
D. White blood cells
Answer: C. Red blood cells.
6. Which layer of the heart wall is responsible for contraction?
A. Endocardium
B. Myocardium
C. Epicardium
D. Pericardium
Answer: B. Myocardium.
7. What is the normal resting heart rate for an adult?
A. 40–60 bpm
B. 60–100 bpm
C. 100–120 bpm
D. 120–140 bpm
Answer: B. 60–100 bpm.
8. Which autonomic nervous system branch increases heart rate?
A. Parasympathetic
B. Sympathetic
C. Somatic
D. Enteric
Answer: B. Sympathetic.
9. What is the role of the chordae tendineae?
A. Conduct electrical impulses
B. Anchor atrioventricular valves
C. Supply blood to the myocardium
D. Regulate blood pressure
Answer: B. Anchor atrioventricular valves.
10. Which vessel supplies blood to the heart muscle?
A. Pulmonary artery
B. Coronary artery
C. Aorta
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D. Vena cava
Answer: B. Coronary artery.
11. What is the primary function of the Purkinje fibers?
A. Initiate the heartbeat
B. Conduct impulses to the ventricles
C. Regulate valve closure
D. Pump blood to the body
Answer: B. Conduct impulses to the ventricles.
12. Which phase of the cardiac cycle involves ventricular contraction?
A. Diastole
B. Systole
C. Atrial relaxation
D. Ventricular filling
Answer: B. Systole.
13. What is the primary source of energy for cardiac muscle?
A. Glucose
B. Fatty acids
C. Amino acids
D. Ketones
Answer: B. Fatty acids.
14. Which blood vessel has the thickest muscular wall?
A. Vein
B. Artery
C. Capillary
D. Venule
Answer: B. Artery.
15. What is the role of the atrioventricular (AV) node?
A. Initiate the heartbeat
B. Delay the electrical impulse
C. Pump blood to the lungs
D. Prevent backflow
Answer: B. Delay the electrical impulse.
16. Which condition results from inadequate oxygen supply to the myocardium?
A. Myocardial infarction
B. Hypertension
C. Heart failure
D. Arrhythmia
Answer: A. Myocardial infarction.
17. What is the primary function of hemoglobin in red blood cells?
A. Fight infections
B. Transport oxygen
C. Clot blood
D. Regulate pH
Answer: B. Transport oxygen.
18. Which structure anchors the heart in the mediastinum?
A. Pericardium