Question

what is the importance of valves in the heart (in points)10th std​

Answer 1

Answer:

1.blood passes through a valves before leaving the chamber of a heart

2.The valves prevent the backward flow of blood

3.valves are actually flaps (leafflets) that act as oneway inlets for blood coming into a ventricle and one way outlets for blood leaving a ventricle

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Answer 2

Explanation:

Valves

=>Where are they present?

-:::They are present in the lumen(empty space) of Inferior vena cava (brings blood from lower body parts)

=>Function

-:::They prevent the blood from backflow

That means in simple language

Due to gravity it is hard to push the blood up .Vena cava makes it easy To avoid flowing back downwards of blood.

In heart

They are

=>Bicuspid valves - Left atrium (or left part)

=>Tricuspid valves- Right atrium (or right part)

=>Semi lunar valve (moon shape)- that is in artery