Left atrium passes the blood via_to the left ventricle.
Correct answer: B. Bicuspid valve
- A. Tricuspid valve
- B. Bicuspid valve
- C. Semilunar valve
- D. Sphincter valve
Explanation
The left atrium passes the blood via the bicuspid valve, also known as the mitral valve, to the left ventricle. The bicuspid valve is located between the left atrium and the left ventricle of the heart. It consists of two leaflets or cusps and functions as a one-way gate, allowing blood to flow from the left atrium to the left ventricle during the heart's relaxation phase (diastole). When the left atrium contracts, it forces blood through the open bicuspid valve into the left ventricle.
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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.
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