Circulatory System
Which valve prevents backflow from the left ventricle to the left atrium?
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About This Question
- Subject
- biology
- Chapter
- human physiology
- Topic
- circulatory system
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Mitral (bicuspid) valve
- Heart Anatomy: The heart has four chambers and specific valves to ensure one-way blood flow.
- Left Side: Blood moves from the Left Atrium to the Left Ventricle.
- Atrioventricular (AV) Valve: The valve between these two chambers is the Mitral valve (also known as the Bicuspid valve).
- Function: When the left ventricle contracts to pump blood into the aorta, the mitral valve closes tightly to prevent blood from leaking back into the left atrium.
- Right Side: The Tricuspid valve serves a similar function on the right side of the heart.
This easy difficulty biology question is from the chapter human physiology, covering the topic of circulatory system. It appeared in the 2025 exam.
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