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Question
Differentiate between:
Diastole and Systole.
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Solution
| Diastole | Systole |
| It is the condition of the heart when the chambers relax. | It is the condition of the heart when the chambers of the heart contract. |
| It is the condition when the blood enters the chamber, e,g., when left atrium relaxes, blood enters from the pulmonary vein under low pressure. | It is the condition when the blood is pumped out of the heart, e.g., when the left ventricle contracts, the blood is pumped to the body under high pressure. |
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RELATED QUESTIONS
Choose the correct answer:
The mammalian heart is ___________
Complete the following sentence with appropriate word:
The heart is made up of special muscles, the _______ muscles.
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. |
The phase of contraction of heart is termed as ______.
For which of the following reason the left ventricle of human heart has its wall thicker than the right ventricle?
By which of the following mitral valve and tricuspid valve are attached to the papillary muscles?
______ valve is present at the opening of coronary sinus
Identify the INCORRECT statement regarding heart.
Observe the diagram, Identify the parts labelled as P, Q, R, S. Choose the correct option for the conduction of cardiac impulse.
Heart is made up of ______.
