Question

What is the role of diaphragm and ribs in respiration ?are both men and women are same

Answer 1

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Diaphragm and ribs performs the similar function of increasing the volume of thoracic chamber and hence more air can enter the lungs.

Both men and women ar same in many aspects but different in other's.They are different in reproduction.


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Answer 2

Diaphragm :

1) Diaphragm is a muscular dome shaped tissue present at the floor of the chest cavity separating abdomen from respiratory system.

2) Diaphragm expands downwards into the abdomen thus increasing chest cavity.This allows the lungs to expand as we inhale.

3) As the diaphragm contracts upwards thus decreasing the chest cavity, it allows the

air to expel from the lungs.

Ribs :

4) The ribs protect the lungs and expand as we inhale to facilitate space for the lungs to expand. The ribs then contract expelling the air from the lungs.

5) The intercostal muscles present between the ribs help in contraction and relaxation of ribs.

6) In man, diaphragm plays a major role in the respiration, while in woman, the ribs

play a major role.