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प्रश्न
Foetus : Amnion : : Heart: ______
उत्तर
Foetus : Amnion : : Heart : Pericardium
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संबंधित प्रश्न
The human body has an organ A which acts as a double pump. The oxygenated blood coming from the lungs through blood vessel B enters the upper left chamber C of the double pump. When chamber C contracts, then blood goes into the lower left chamber D. The contraction of chamber D forces the blood to go into a blood vessel E which supplies oxygenated blood to all the organs of the body (except the lungs). The deoxygenated blood coming out of the body organs is taken by a blood vessel F to the right upper chamber G of the pumping organ. Contraction of chamber G forces the deoxygenated blood into the right lower chamber H. And finally, the contraction of chamber H sends the deoxygenated blood into the lungs through blood vessel I.
- What is organ A?
- Name the blood vessel (i) B (ii) E (iii) F, and (iv) I.
- What are chambers (i) C, and (ii) D?
- What are chambers (i) G and (ii) H?
Name the following:
The valve of right auriculo-ventricular aperture.
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 |
Draw the diagram external features of the heart.
Name an instrument which is used to hear heart sounds.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The heart of a normal human adult beats more than one lakh times per day.
Describe pericardium.
The walls of the heart is made up of ______.
What is the advantage of having a four-chambered heart?
Explain the term Ligamentum arteriosum.
