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Which of the following statement is true regarding the human respiratory system?

a)

Tracheal rings are of hyaline cartilage

b)

Dorsal side of the thoracic chamber is formed by sternum

c)

Expiration occurs when there is negative pressure in the lungs

d)

Inspiration occurs when there is positive pressure in the lungs



Question ID - 2704 | SaraNextGen Top Answer

Which of the following statement is true regarding the human respiratory system?

a)

Tracheal rings are of hyaline cartilage

b)

Dorsal side of the thoracic chamber is formed by sternum

c)

Expiration occurs when there is negative pressure in the lungs

d)

Inspiration occurs when there is positive pressure in the lungs

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Trachea It is about four and half inches long with ‘C’ shaped rings of hyaline cartilage in its walls. These rings of cartilage makes the wall non-collapsible. It is internally lined by pseudostratified ciliated squamous epithelium. Cilia pushs out the mucous

127 votes


127