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प्रश्न
Refer to fig. 7.3 and answer the following questions:
(i) Impure blood is received by
(ii) Which chamber has thickest wall
(iii) Function of bicuspid value
(iv) Function of tricuspid value
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उत्तर
(i)Inferior vena cava, superior vena cava and coronary sinus
(ii) Ventricles
(iii) Function of bicuspid valve: It prevents the reverse flow of blood from the left ventricle into the left auricle.
(iv) Function of tricuspid valve: It prevents the reverse flow of blood from the right ventricle into the right auricle.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The blood loaded with carbon dioxide from the body comes into the __________ of the heart.
Name any four heart conditions that occur commonly.
Why is the SA node called the pacemaker of the heart?
State the Function: Pulmonary artery
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.
How are arteries and veins structurally different from one another?
How many times per healthy man beats?
Heart is made up of ______.
Fill in the blanks of the following paragraph using just two words – arteries and veins.
___(a)___ carry oxygen-rich blood from the heart to all parts of the body and ___(b)___ carry carbon dioxide-rich blood from all parts of the body back to the heart. ___(c)___ have thin walls and ___(d)___ have thick elastic walls. Blood flows at high pressure in ___(e)___. Valves are present in ___(f)___ which allow blood to flow only towards the heart. ___(g)___ divide into smaller vessels. These vessels further divide into extremely thin tubes called capillaries. The capillaries join up to form ___(h)___.
Give reason:
Valves are present in the veins.
