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Expiration

Which of the ...

Question

Which of the following does not happen during expiration?

A

Diaphragm becomes convex

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B

Muscular diaphragm relaxes

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C

Volume of the thoracic cavity decreases

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D

Diaphragm becomes concave

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Solution

The correct option is A
Diaphragm becomes convex

Diaphragm becomes convex

Diaphragm becomes convex during the process of inspiration.

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Similar questions

Q. Identify the sequence of steps involved during inspiration in rabbit.
(A) Volume of thoracic cavity increases
(B) Contraction of external intercostal muscles moves the rib cage forward
(C) Diaphragm becomes flat
(D) Thoracic cavity expands drawing air into lungs.

During expiration the diaphragm becomes:

Q. How many of the following given statements are not correct w.r.t. the events that occur during inspiration?
(a) Relaxation of diaphragm
(b) Contraction of external inter-costal muscles
(c) Volume of thoracic cavity decreases
(d) Intra-pulmonary pressure increases

Choose the suitable option among the following given options.

Q. During inhalation, the diaphragm becomes __(i)____ and ribs move ___(ii)_____ .

Q. Which of the following increases area of thoracic cavity during inhalation?

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