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प्रश्न
What is the advantage of having a four-chambered heart?
उत्तर
Four chambered heart has the following advantages
- Clear cut division of labours among different chambers
- Segregation of oxygenated and deoxygenated blood in the heart.
- Efficiency of the heart will increase.
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संबंधित प्रश्न
Name the following:
The first heart sound.
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
Choose the correct answer:
In mammals the opening of post caval in the right auricle is guarded by _________
Name the Following
The study of blood vascular system including arteries, veins and heart.
State the Function: Bundle of His
State the Function: Bicuspid valve
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
A vein differs from the artery in having ______.
In normal health condition, ventricular systole lasts for ______.
Why is the sino-atrial node referred to as the pacemaker of the human heart?
