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प्रश्न
Short answer question.
Describe valves of human heart.
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उत्तर
Both the atria open into ventricles of their respective sides by atrioventricular apertures. The atrio-ventricular apertures are guarded by cuspid valves.
i. Cuspid valves:
These are bicuspid and tricuspid valves. The bicuspid valve also known as the mitral valve is present in the left atrio-ventricular aperture. Tricuspid valve is present in the right AV aperture.
ii. Eustachian valve:
It is present on the opening of the post-caval vein (inferior vena cava).
iii. Thebesian valve:
It guards the opening of the coronary sinus into the right atrium.
iv. Semilunar valves:
These three valves guard the opening between the right ventricle and pulmonary artery and left ventricle and aorta.
APPEARS IN
संबंधित प्रश्न
Name the Following
The valve present between the left atrium and the left ventricle.
Column 2 is a list of items related to ideas in Column 1. Match the term in Column 2 with the suitable idea given in Column 1.
| Column 1 | Column 2 |
| (i) Superior vena cava | (a) Collect deoxygenated blood from the wall of the heart. |
| (ii) Inferior vena cava | (b) Carry oxygenated blood to heart muscle. |
| (iii) Pulmonary vein | (c) Collects deoxygenated blood from upper part. |
| (iv) Coronary veins | (d) Collects deoxygenated blood from lower parts. |
| (v) Coronary artery | (e) Brings oxygenated blood from lungs. |
| (vi) Aorta | (f) Large artery |
| (vii) Heart attack | (g) Large vein |
| (viii) Blood Pressure | (h) Oxygenated blood |
| (ix) Tricuspid valve | (i) Sphygmomanometer |
| (x) Bicuspid valve | (j) Allows blood flow from right auricle to right ventricle. |
| (xi) Contraction and relaxation of heart | (k) Blocking of coronary arteries. |
| (l) Cardiac muscle. | |
| (m) Allows blood flow from left auricle to left ventricle. | |
| (n) Allows blood flow from right ventricle of pulmonary aorta. |
What is the function of pericardial fluid?
How do the pulmonary artery and pulmonary vein differ in their function when compared to a normal artery and vein?
The blood does not flow back into the ______ when mitral valve closes.
By which of the following mitral valve and tricuspid valve are attached to the papillary muscles?
______ guards the opening of inferior vena cava.
The walls of the heart is made up of ______.
Give the location of Pericardial fluid.
The ______ have thin and less muscular ______ and have ______ to prevent back flow of ______.
