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प्रश्न
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the questions that follow:
 |
- Name the phase.
- Which part of the heart is contracting in this phase? Give a reason to support your answer.
- Name the parts numbered 1to6.
- What type of blood flows through the parts marked 'l' and '2' respectively?
- How many valves are closed in this phase?
उत्तर
- Ventricular systole.
- The right and left ventricles are contracting in this phase. Tricuspid and bicuspid valves are closed.
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- Pulmonary artery,
- Aorta,
- Pulmonary vein,
- Left auricle,
- Bicuspid valve (mitral valve),
- Right ventricle.
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- Pulmonary artery: It carries deoxygenated blood.
- Aorta: It carries oxygenated blood.
- Two (bicuspid and tricuspid) valves.
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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?
Label the following diagram :
Name the Following
Layer, which surrounds the heart.
Give Technical Term for the following:
The phase of cardiac cycle in which the auricles contract
Short answer question.
Describe valves of human heart.
For which of the following reason the SA node acts as the normal pacemaker?
Which of the following event occurs during atrial systole?
Which of the following acts as a pace setter of heart?
Draw a neat diagram of the conducting system of human heart and label AV node, Bundle of His and Purkinje fibres.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Lub : Atrioventricular valves :: Dup : ______
