🧩 Quiz LESSON 11 OF 16

Human Systems — 12 MCQ MDCAT Quiz

⏱️ 12 min

🧩 12 Questions

Twelve MDCAT-style questions spanning circulatory, respiratory, nervous, and digestive physiology, with full explanations for every answer.

🧩 Human Body Systems Quiz

12 questions · instant feedback

1. Which heart valve lies between the left atrium and left ventricle?

2. Cardiac output is calculated as:

3. Which blood component is primarily responsible for oxygen transport?

4. Gas exchange in the lungs occurs across the:

5. During inspiration, the diaphragm:

6. The resting membrane potential of a neuron is approximately:

7. During depolarisation of a neuron, which ion rushes into the cell?

8. The myelin sheath's main function is to:

9. Which enzyme breaks down starch into maltose in the mouth?

10. Pepsin digests proteins most effectively at which pH, matching the stomach's environment?

11. The primary site of nutrient absorption in the digestive tract is the:

12. The autonomic nervous system's "fight or flight" response is driven by the: