The intake and output of air from the lungs i | vedclass

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Question

(C) The process of breathing involves the movement of air into and out of the lungs,which is primarily driven by changes in the volume of the thoracic

Vedclass · Accepted Answer

Muscles of ribs and diaphragm

Vedclass · Answer

(C) The process of breathing involves the movement of air into and out of the lungs,which is primarily driven by changes in the volume of the thoracic cavity.These volume changes are created by the contraction and relaxation of the diaphragm and the external and internal intercostal muscles associated with the ribs.When the diaphragm and external intercostal muscles contract,the thoracic volume increases,leading to inspiration.When these muscles relax,the thoracic volume decreases,leading to expiration.

The intake and output of air from the lungs is helped by

Similar Questions

If a person breathes with maximal effort but with his nose and mouth closed,the alveolar pressure can be decreased to as low as

Select the correct process that occurs during inspiration (inhalation):
$(a)$ Contraction of the diaphragm
$(b)$ Contraction of external intercostal muscles
$(c)$ Decrease in pulmonary volume
$(d)$ Increase in intra-pulmonary pressure

An increase in pulmonary volume decreases the intra-pulmonary pressure to less than the atmospheric pressure,which forces the air from outside to move into the lungs. This process is known as:

Expiration occurs only when.....

Inspiration is initiated by

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