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प्रश्न
The blood leaving the tissues becomes richer in:
पर्याय
Carbon dioxide
Water
Haemoglobin
Oxygen
उत्तर
Carbon dioxide
The blood leaving the tissues becomes richer in carbon dioxide, i.e. it becomes deoxygenated.
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संबंधित प्रश्न
Match the terms given in column I with terms in Column II:
| Column I | Column Il |
| (i) Left-auricle | (a) Clotting |
| (ii) Right auricle | (b) Thebasius valve |
| (iii) Left ventricle | (c) Pulmonary vein |
| (iv) Right-ventricle | (d) Aorta |
| (v) Fibrin | (e) Pulmonary arch |
Describe in brief die cardiac cycle.
When are the sounds ‘LUBB’ and ‘DUB’ produced during heartbeat ?
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
Pick out the odd one.
heart, legs, brain, kidney
Observe the diagram, Identify the parts labelled as P, Q, R, S. Choose the correct option for the conduction of cardiac impulse.
In human foetus, the heart begins to beat at developmental age of
The doubled-layered membrane which covers and protects the heart is ______.
Define the following term:
Heart
Given below is a diagram of the external features of the human heart. Study the figure and answer the questions that follows:
 |
- Label the guidelines shown as 1 to 6 in the figure.
- Write the important role of parts 5 and 6.
- Name the chamber of the heart which collects blood from the lungs through a blood vessel. Also write the name of the blood vessel.
- Write one structural and one functional difference between the blood vessels 4 and 5.
- What happens when there is a blockage in any coronary artery or any of their branches?
