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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:
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- 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.
APPEARS IN
संबंधित प्रश्न
Sketch and label the ventral view of the human heart.
Fill in the blank with suitable word given below:
The oxygen-rich blood from the lungs comes into the __________ of the heart.
When are the sounds ‘LUBB’ and ‘DUB’ produced during heartbeat ?
The figure below represents the internal structure of a mammalian heart and the associated blood vessels.
(i) (a) Name each of the structures labeled 1, 2, 3, 4, 5, 6, 7 and 8.
(b) State the function of each of the structures 5, 6, 7, and 8.
(ii) (a) State the function of the heart as an entire organ.
(b) Why are the walls of the left ventricle more muscular than the right?
State the Function: Bundle of His
Draw labelled diagram of internal structure of human heart.
Label right atrium, mitral valve, left ventricle and pulmonary semilunar valve.
Write a function of Eustachian and tricuspid valve found in human heart.
Pick out the odd one.
heart, legs, brain, kidney
Which of the following event occurs during ventricular diastole?
______ externally separates ventricles from each other.
Draw a neat diagram of the conducting system of human heart and label AV node, Bundle of His and Purkinje fibres.
