The function of surfactant is/are:

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(D) Surfactant is a lipoprotein secreted by specialized cells within the alveolar epithelium. Its primary function is to reduce the surface tension of

Vedclass · Accepted Answer

All the above

Vedclass · Answer

(D) Surfactant is a lipoprotein secreted by specialized cells within the alveolar epithelium. Its primary function is to reduce the surface tension of the fluid lining the alveoli. By reducing surface tension,it prevents the collapse of alveoli during expiration,thereby maintaining their stable size. Additionally,it decreases the effort required to inflate the lungs,thus facilitating lung expansion during inspiration. Therefore,all the mentioned options are correct.

Column-$I$	Column-$II$
$a$. Larynx	$p$. Epiglottis
$b$. Trachea	$q$. Alveoli
$c$. Alveolus	$r$. Sound box
$d$. Epiglottis	$s$. Air passage tube
	$t$. Common passage

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Match the following columns:
Column-$I$ Column-$II$
$a$. Larynx $p$. Epiglottis
$b$. Trachea $q$. Alveoli
$c$. Alveolus $r$. Sound box
$d$. Epiglottis $s$. Air passage tube
$t$. Common passage

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