The thickest chamber of the human heart is:
Correct answer: D. Left ventricle
- A. Left atrium
- B. Right atrium
- C. Right ventricle
- D. Left ventricle
Explanation
The left ventricle of your heart is larger and thicker than the other chambers. This is because it has to pump the blood further around the body, and against a higher pressure. The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve, and hence does not need very thick walls. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve; hence, it also doesn't need thick walls.
This question appeared on the UHS MDCAT 2018 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Circulation
The circulatory system covers the chambers, valves and conducting pathway of the human heart, along with the cardiac cycle and control of heartbeat. It compares arteries, veins and capillaries by structure and function, and explains how the lymphatic system returns tissue fluid, transports absorbed fats and supports immunity.
Practise Circulation
695 free Circulation MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Circulation questions
The beating of the heart in a human being is heard on the left side because:
Which is the pacemaker of human heart:
Just as the_ filter the lymph, the _filters blood.
The number of stages involved in a heart beat is:
The number of efferent lymph vessels in a lymph node is:
The police---- released any information about the case.