Anatomy and Physiology MCQs
Section 1: Cell Biology
1. What is the primary function of the cell membrane?
A) Protein synthesis
B) Cell signaling
C) Regulation of cell growth
D) Maintenance of cell shape
✅️ Answer: B) Cell signaling
2. Which organelle is responsible for protein synthesis?
A) Mitochondria
B) Endoplasmic reticulum
C) Ribosome
D) Lysosome
✅ Answer: C) Ribosome
3. What is the process by which cells become specialized?
A) Mitosis
B) Meiosis
C) Differentiation
D) Apoptosis
✅ Answer: C) Differentiation
Section 2: Musculoskeletal System
4. What is the largest bone in the human body?
A) Femur
B) Humerus
C) Tibia
D) Fibula
✅ Answer: A) Femur
5. Which muscle is responsible for flexion of the elbow?
A) Biceps brachii
B) Triceps brachii
C) Brachialis
D) Extensor carpi radialis
✅ Answer: A) Biceps brachii
6. What is the function of the synovial fluid in joints?
A) To reduce friction
B) To provide nutrients
C) To remove waste
D) To regulate temperature
✅ Answer: A) To reduce friction
Section 3: Nervous System
7. What is the primary function of the nervous system?
A) To control movement
B) To regulate body temperature
C) To maintain homeostasis
D) To facilitate communication
✅ Answer: D) To facilitate communication
8. Which part of the brain regulates body temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Brainstem
✅ Answer: C) Hypothalamus
9. What is the function of the myelin sheath?
A) To transmit signals
B) To protect the neuron
C) To regulate signals
D) To facilitate transmission
✅ Answer: D) To facilitate transmission
Section 4: Cardiovascular System
10. What is the primary function of the heart?
A) To pump blood
B) To regulate blood pressure
C) To maintain blood composition
D) To facilitate gas exchange
✅ Answer: A) To pump blood
11. Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary artery
B) Pulmonary vein
C) Aorta
D) Superior vena cava
✅ Answer: B) Pulmonary vein
12. What is the function of the cardiac conduction system?
A) To regulate heart rate
B) To regulate blood pressure
C) To maintain cardiac output
D) To facilitate contraction
✅ Answer: A) To regulate heart rate
Section 5: Respiratory System
13. What is the primary function of the respiratory system?
A) To regulate body temperature
B) To maintain acid-base balance
C) To facilitate gas exchange
D) To regulate blood pressure
✅ Answer:
Anatomy and physiology:
Section 1: Cell Biology
1. What is the primary function of the cell membrane?
A) Protein synthesis
B) Cell signaling
C) Regulation of cell growth
D) Maintenance of cell shape
✅ Answer: B) Cell signaling
2. Which organelle is responsible for protein synthesis?
A) Mitochondria
B) Endoplasmic reticulum
C) Ribosome
D) Lysosome
✅ Answer: C) Ribosome
3. What is the process by which cells become specialized?
A) Mitosis
B) Meiosis
C) Differentiation
D) Apoptosis
✅ Answer: C) Differentiation
Section 2: Musculoskeletal System
4. What is the largest bone in the human body?
A) Femur
B) Humerus
C) Tibia
D) Fibula
✅ Answer: A) Femur
5. Which muscle is responsible for flexion of the elbow?
A) Biceps brachii
B) Triceps brachii
C) Brachialis
D) Extensor carpi radialis
✅ Answer: A) Biceps brachii
6. What is the function of the synovial fluid in joints?
A) To reduce friction
B) To provide nutrients
C) To remove waste
D) To regulate temperature
✅ Answer: A) To reduce friction
Section 3: Nervous System
7. What is the primary function of the nervous system?
A) To control movement
B) To regulate body temperature
C) To maintain homeostasis
D) To facilitate communication
✅ Answer: D) To facilitate communication
8. Which part of the brain regulates body temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Brainstem
✅ Answer: C) Hypothalamus
9. What is the function of the myelin sheath?
A) To transmit signals
B) To protect the neuron
C) To regulate signals
D) To facilitate transmission
✅ Answer: D) To facilitate transmission
Section 4: Cardiovascular System
10. What is the primary function of the heart?
A) To pump blood
B) To regulate blood pressure
C) To maintain blood composition
D) To facilitate gas exchange
✅ Answer: A) To pump blood
11. Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary artery
B) Pulmonary vein
C) Aorta
D) Superior vena cava
✅ Answer: B) Pulmonary vein
12. What is the function of the cardiac conduction system?
A) To regulate heart rate
B) To regulate blood pressure
C) To maintain cardiac output
D) To facilitate contraction
✅ Answer: A) To regulate heart rate
Section 5: Respiratory System
13. What is the primary function of the respiratory system?
A) To regulate body temperature
B) To maintain acid-base balance
C) To facilitate gas exchange
D) To regulate blood pressure
✅ Answer: C) To facilitate gas exchange
14. Which part of the respiratory system is responsible for gas exchange?
A) Trachea
B) Bronchi
C) Alveoli
D) Diaphragm
✅ Answer: C) Alveoli
Anatomy and Physiology
Here are 50 multiple-choice questions on anatomy and physiology:
Section 1: Cell Biology
1. What is the primary function of the cell membrane?
A) Protein synthesis
B) Cell signaling
C) Regulation of cell growth
D) Maintenance of cell shape
✅ Answer: B) Cell signaling
2. Which organelle is responsible for protein synthesis?
A) Mitochondria
B) Endoplasmic reticulum
C) Ribosome
D) Lysosome
✅ Answer: C) Ribosome
3. What is the process by which cells become specialized?
A) Mitosis
B) Meiosis
C) Differentiation
D) Apoptosis
✅ Answer: C) Differentiation
Section 2: Musculoskeletal System
4. What is the largest bone in the human body?
A) Femur
B) Humerus
C) Tibia
D) Fibula
✅ Answer: A) Femur
5. Which muscle is responsible for flexion of the elbow?
A) Biceps brachii
B) Triceps brachii
C) Brachialis
D) Extensor carpi radialis
✅ Answer: A) Biceps brachii
6. What is the function of the synovial fluid in joints?
A) To reduce friction
B) To provide nutrients
C) To remove waste
D) To regulate temperature
✅ Answer: A) To reduce friction
Section 3: Nervous System
7. What is the primary function of the nervous system?
A) To control movement
B) To regulate body temperature
C) To maintain homeostasis
D) To facilitate communication
✅ Answer: D) To facilitate communication
8. Which part of the brain regulates body temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Brainstem
✅ Answer: C) Hypothalamus
9. What is the function of the myelin sheath?
A) To transmit signals
B) To protect the neuron
C) To regulate signals
D) To facilitate transmission
✅ Answer: D) To facilitate transmission
Section 4: Cardiovascular System
10. What is the primary function of the heart?
A) To pump blood
B) To regulate blood pressure
C) To maintain blood composition
D) To facilitate gas exchange
✅ Answer: A) To pump blood
11. Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary artery
B) Pulmonary vein
C) Aorta
D) Superior vena cava
✅ Answer: B) Pulmonary vein
12. What is the function of the cardiac conduction system?
A) To regulate heart rate
B) To regulate blood pressure
C) To maintain cardiac output
D) To facilitate contraction
✅ Answer: A) To regulate heart rate
Section 5: Respiratory System
13. What is the primary function of the respiratory system?
A) To regulate body temperature
B) To maintain acid-base balance
C) To facilitate gas exchange
D) To regulate blood pressure
✅ Answer: C) To facilitate gas exchange
14. Which part of the respiratory system is responsible for gas exchange?
A) Trachea
B) Bronchi
C) Alveoli
D) Diaphragm
✅ Answer: C) Alveoli
15. What is the function of the surfactant in the lungs?
A) To reduce surface tension
B) To increase surface tension
C) To facilitate gas exchange
D) To regulate breathing
✅ Answer: A) To reduce surface tension
Section 6: Digestive System
16. What is the primary function of the digestive system?
A) To break down food
B) To absorb nutrients
C) To regulate body weight
Anatomy and Physiology MCQs
Section 1: Cell Biology
1. What is the primary function of the cell membrane?
A) Protein synthesis
B) Cell signaling
C) Regulation of cell growth
D) Maintenance of cell shape
✅ Answer: B) Cell signaling
2. Which organelle is responsible for protein synthesis?
A) Mitochondria
B) Endoplasmic reticulum
C) Ribosome
D) Lysosome
✅ Answer: C) Ribosome
3. What is the process by which cells become specialized?
A) Mitosis
B) Meiosis
C) Differentiation
D) Apoptosis
✅ Answer: C) Differentiation
Section 2: Musculoskeletal System
4. What is the largest bone in the human body?
A) Femur
B) Humerus
C) Tibia
D) Fibula
✅ Answer: A) Femur
5. Which muscle is responsible for flexion of the elbow?
A) Biceps brachii
B) Triceps brachii
C) Brachialis
D) Extensor carpi radialis
✅ Answer: A) Biceps brachii
6. What is the function of the synovial fluid in joints?
A) To reduce friction
B) To provide nutrients
C) To remove waste
D) To regulate temperature
✅ Answer: A) To reduce friction
Section 3: Nervous System
7. What is the primary function of the nervous system?
A) To control movement
B) To regulate body temperature
C) To maintain homeostasis
D) To facilitate communication
✅ Answer: D) To facilitate communication
8. Which part of the brain regulates body temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Brainstem
✅ Answer: C) Hypothalamus
9. What is the function of the myelin sheath?
A) To transmit signals
B) To protect the neuron
C) To regulate signals
D) To facilitate transmission
✅ Answer: D) To facilitate transmission
Section 4: Cardiovascular System
10. What is the primary function of the heart?
A) To pump blood
B) To regulate blood pressure
C) To maintain blood composition
D) To facilitate gas exchange
✅ Answer: A) To pump blood
11. Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary artery
B) Pulmonary vein
C) Aorta
D) Superior vena cava
✅ Answer: B) Pulmonary vein
12. What is the function of the cardiac conduction system?
A) To regulate heart rate
B) To regulate blood pressure
C) To maintain cardiac output
D) To facilitate contraction
✅ Answer: A) To regulate heart rate
*Section 5: Respiratory System*
13. What is the primary function of the respiratory system?
A) To regulate body temperature
B) To maintain acid-base balance
C) To facilitate gas exchange
D) To regulate blood pressure
✅ Answer: C) To facilitate gas exchange
14. Which part of the respiratory system is responsible for gas exchange?
A) Trachea
B) Bronchi
C) Alveoli
D) Diaphragm
✅ Answer: C) Alveoli
15. What is the function of the surfactant in the lungs?
A) To reduce surface tension
B) To increase surface tension
C) To facilitate gas exchange
D) To regulate breathing
✅ Answer: A) To reduce surface tension
*Section 6: Digestive System*
16. What is the primary function of the digestive system?
A) To break down food
B) To absorb nutrients
C) To regulate body weight
D) To maintain electrolyte balance
✅ Answer: A) To break down food
17. Which part of the digestive system is responsible for protein digestion?
A) Stomach
B) Small intestine
C) Large intestine
D) Pancreas
✅ Answer: A) Stomach
18. What is the function of the bile in digestion?
A) To emulsify fats
B) To break down carbohydrates
C) To absorb proteins
D) To regulate gut motility
✅ Answer: A) To emulsify fats
*Section 7: Endocrine System*
19. What is the primary function of the endocrine system?
A) To regulate body temperature
B) To maintain homeostasis
C) To facilitate communication
D) To regulate growth and development
✅ Answer: D) To regulate growth and development
20. Which hormone regulates blood sugar levels?
A) Insulin
B) Glucagon
C) Adrenaline
D) Thyroxine
✅ Answer: A) Insulin
21. What is the function of the pituitary gland?
A) To regulate growth and development
B) To regulate body temperature
C) To maintain homeostasis
D) To facilitate communication
✅ Answer: A) To regulate growth and development
*Section 8: Urinary System*
22. What is the primary function of the urinary system?
A) To regulate body temperature
B) To maintain acid-base balance
C) To remove waste
D) To regulate blood pressure
✅ Answer: C) To remove waste
23. Which part of the urinary system is responsible for filtering waste?
A) Kidneys
B) Ureters
C) Bladder
D) Urethra
✅ Answer: A) Kidneys
24. What is the function of the nephrons in the kidneys?
A) To filter waste
B) To regulate blood pressure
C) To maintain electrolyte balance
D) To facilitate urine formation
✅ Answer: A) To filter waste
*Section 9: Reproductive System*
25. What is the primary function of the reproductive system?
A) To regulate body temperature
B) To maintain homeostasis
C) To facilitate communication
D) To produce offspring
✅ Answer: D) To produce offspring
26. Which part of the male reproductive system produces sperm?
A) Testes
B) Epididymis
C) Vas deferens
D) Seminal vesicles
✅ Answer: A) Testes
27. What is the function of the ovaries in the female reproductive system?
A) To produce eggs
B) To regulate menstrual cycle
C) To maintain pregnancy
D) To facilitate childbirth
✅ Answer: A) To produce eggs
*Section 10: Integumentary System*
28. What is the primary function of the integumentary system?
A) To regulate body temperature
