Mitral valve is also known as?

Appeared in: BSF Staff Nurse - 2021

Explanation

The mitral valve is the atrioventricular (AV) valve located between the left atrium and the left ventricle.
It is called the bicuspid valve because it is composed of two leaflets or cusps (bi- meaning two).
This valve opens to allow oxygenated blood to pass from the left atrium to the left ventricle and closes to prevent backflow during ventricular contraction.
The name 'mitral' is derived from its resemblance to a bishop's mitre (a tall hat).

Option B: The tricuspid valve is the atrioventricular valve on the right side of the heart, not the left. It is distinct from the mitral valve and has three cusps (tri- meaning three).
Option C: Semilunar valve is a category of valves, not a specific valve that is synonymous with the mitral valve. The semilunar valves are the aortic and pulmonary valves, which are located at the exit of the ventricles.
Option D: This option is incorrect because only one of the choices, 'Bicuspid valve', is a correct synonym for the mitral valve. The other options refer to different valves or categories of valves.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the heart valves, specifically the nomenclature of the mitral valve as background academic context rather than a clinical decision trigger.
Understanding the anatomy of the mitral valve is fundamental for nurses, as it is the most frequently diseased heart valve.
Conditions like mitral stenosis (narrowing) and mitral regurgitation (leakage) are common and can lead to significant symptoms like dyspnea, fatigue, and complications such as atrial fibrillation and heart failure.
Nurses are responsible for assessing patients for signs of valvular heart disease, such as listening for heart murmurs, monitoring for fluid overload, and educating patients about their condition and treatment.

How to Approach the Question

This is a factual recall question based on anatomical knowledge.
First, identify the key term in the question: 'Mitral valve'.
Recall the structure and alternative names for the valves of the heart.
The mitral valve is the atrioventricular valve on the left side of the heart.
Remember that it has two cusps, which gives it the name 'bicuspid valve'.
Evaluate the given options: 'Bicuspid valve' is a direct synonym. 'Tricuspid valve' is the right AV valve. 'Semilunar valve' is a different category of valves.

Concept Tested & Keywords

Concept Tested: Anatomy of the heart valves, specifically the nomenclature of the mitral valve.
Stem keywords: Mitral valve, also known as
Lead-in keywords: BEST, MOST RELEVANT CLUE

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E6 Anatomy Applied Ashalatha 4e pp. 165-167, 164-166

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