WGU - D313 - ANATOMY & PHYSIOLOGY 2
PRACTICE TEST WITH UPGRADED QUESTIONS
AND ANSWERS 2026
1. Which structure contains lubricating fluid that helps the heart to expand and
contract?: Pericardial Cavity
2. Which structure protects the heart?: Pericardium
3. Which artery gives rise to the right ulnar artery?: Right Brachial Artery
4. Which artery becomes the femoral artery one it leaves the body cavity?: External
Iliac Artery
5. Which heart sound does the closing of the Bicuspid valve correspond to?: -
Lub/S1
6. Which part of the cardiac cycle is represented by the QRS complex?: Ventricular
Systole
7. What is the difference between the maximum and resting cardiac output (CO)
called?: Cardiac Reserve
8. What is the normal resting heart rate (HR) of an adult?: 60-110 bpm
9. What sound is produced by the closing of the mitral and tricuspid valve?: First
Heart Sound
10. Which blood cells lack granules?: Monocytes and lymphocytes
11. Which blood component contains hemoglobin?: Erythrocyte
12. Which cell contains the highest concentrations of iron?: Erythrocyte
13. Which element contributes to blood clotting?: Prothrombin protein
14. What is an elastic, flexible cartilage in the larynx?: Epiglottic cartilage
15. Which structure is not a part of the throat?: Larynx
16. Which structure maintains equal air pressure in the lung?: Alveolar pores
17. Which cell type removes debris and pathogens from the alveolar wall?: Alveolar
macrophages
18. What leads to carbominogemoglobin formation?: CO2 + Hb
19. What is the role of the diaphragm during normal breathing?: During inhalation it
contracts and flattens
, 20. According to Boyle's law, what is the relation between pressure and volume?-
: When volume increases, pressure decreases at a constant temperature
21. What is the function of the aortic body?: It monitors the partial pressure of carbon dioxide,
oxygen, and pH in the blood
22. What is the function of arteries?: They carry blood away from the heart
PRACTICE TEST WITH UPGRADED QUESTIONS
AND ANSWERS 2026
1. Which structure contains lubricating fluid that helps the heart to expand and
contract?: Pericardial Cavity
2. Which structure protects the heart?: Pericardium
3. Which artery gives rise to the right ulnar artery?: Right Brachial Artery
4. Which artery becomes the femoral artery one it leaves the body cavity?: External
Iliac Artery
5. Which heart sound does the closing of the Bicuspid valve correspond to?: -
Lub/S1
6. Which part of the cardiac cycle is represented by the QRS complex?: Ventricular
Systole
7. What is the difference between the maximum and resting cardiac output (CO)
called?: Cardiac Reserve
8. What is the normal resting heart rate (HR) of an adult?: 60-110 bpm
9. What sound is produced by the closing of the mitral and tricuspid valve?: First
Heart Sound
10. Which blood cells lack granules?: Monocytes and lymphocytes
11. Which blood component contains hemoglobin?: Erythrocyte
12. Which cell contains the highest concentrations of iron?: Erythrocyte
13. Which element contributes to blood clotting?: Prothrombin protein
14. What is an elastic, flexible cartilage in the larynx?: Epiglottic cartilage
15. Which structure is not a part of the throat?: Larynx
16. Which structure maintains equal air pressure in the lung?: Alveolar pores
17. Which cell type removes debris and pathogens from the alveolar wall?: Alveolar
macrophages
18. What leads to carbominogemoglobin formation?: CO2 + Hb
19. What is the role of the diaphragm during normal breathing?: During inhalation it
contracts and flattens
, 20. According to Boyle's law, what is the relation between pressure and volume?-
: When volume increases, pressure decreases at a constant temperature
21. What is the function of the aortic body?: It monitors the partial pressure of carbon dioxide,
oxygen, and pH in the blood
22. What is the function of arteries?: They carry blood away from the heart
