Question

Mitral valve is the other name of ______________

• A. Bicuspid valve
• B. Tricuspid valve
• C. Valve found in vena cava
• D. Valve found at the base of the dorsal aorta

Answer 1

The correct option is A

Bicuspid valve

The correct option is A

Explanation of correct option:

1. Bicuspid valves are aortic valves with just two cusps (or flaps) instead of three.
2. Blood flow from the left ventricle (chamber) to the aorta, your body's main artery, is controlled by the aortic valve.
3. The mitral valve is the only bicuspid valve, and it is placed between the left atrium and the left ventricle of the heart.
4. Heart valves ensure the unidirectional flow of blood from the atrium to the ventricles, or from the ventricle to the aorta or pulmonary trunk.

Explanation of incorrect options:

Option B:

1. The tricuspid valve is made up of three tissue flaps (called cusps, or leaflets). These valve flaps open to allow blood to pass from the right atrium (upper chamber) to the right ventricle (lower chamber) (right ventricle). The valve flaps seal tightly, preventing blood from flowing backward.
2. The tricuspid valves allow blood from the body to flow into the heart and into the right ventricle, where it is pumped to the lungs for oxygen. Blood can flow backward through a faulty tricuspid valve, forcing the heart to work harder.

Option C:

1. The inferior vena cava valve (eustachian valve) is a venous valve that connects the inferior vena cava to the right atrium.
2. It's thought to be a functioning valve in the fetus that lets oxygenated blood skip the pulmonary circulation by directing it from the IVC to the foramen ovale.

Option D:

1. At the base of the aorta and the pulmonary trunk, respectively, are the aortic and pulmonary valves. The "semilunar valves" are another name for them.
2. The semilunar valves control blood flow between the ventricles and the major arteries, allowing blood to flow away from the heart and to critical organs.

Final answer: Mitral valve is the other name for the bicuspid valve.