Q. 985.0( 3 Votes )
The human body has an organ A which acts as a double pump. The oxygenated blood coming from the lungs through a blood vessel B enters the upper left chamber C of the double pump. When chamber C contracts, then blood goes into 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 pumping organ. Contraction of Chamber G forces the deoxygenated blood into right lower chamber H. And finally the contraction of chamber H sends the deoxygenated blood into lungs through a blood vessel I.
(a) What is organ A ?
(b) Name the blood vessel (i) B (ii) E (iii) F, and (iv) I.
(c) What are chambers (i) C, and (i) D?
(d) What are chambers (i) G and (ii) H ?
(a) Heart (A)
(b) (i) Pulmonary Vein (B) (ii) Aorta (E) (iii) Vena cava (F)
(iv)Pulmonary artery (I)
(c) (i) Left atrium (C) (ii) Left ventricle (D)
(d) (i) Right atrium (G) (ii) Right ventricle (H)
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