State the function of saliva.

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Question

(D) Saliva is secreted by the salivary glands in the oral cavity. It performs several vital functions: $1$. It contains mucus which helps in lubricati

Vedclass · Accepted Answer

All of the above.

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(D) Saliva is secreted by the salivary glands in the oral cavity. It performs several vital functions: $1$. It contains mucus which helps in lubricating and adhering the masticated food particles into a bolus. $2$. The bolus is then conveyed into the pharynx and then into the oesophagus by swallowing or deglutition. $3$. Saliva also contains electrolytes ($Na^+$,$K^+$,$Cl^-$,$HCO_3^-$) and enzymes like salivary amylase and lysozyme. Therefore,all the given options are correct functions of saliva.

Column $I$ (Part of the alimentary canal)	Column $II$ (Shape)
$i$. Duodenum	$a$. Worm-like
$ii$. Stomach	$b$. $U$-shaped
$iii$. Tongue	$c$. $J$-shaped
$iv$. Appendix	$d$. Triangular

Similar Questions

Assertion: Lipases of bile help in the emulsification of fats.
Reason: Lipases can break large fat droplets into smaller ones.

Match Column $I$ with Column $II$ and select the correct option.
Column $I$ (Part of the alimentary canal) Column $II$ (Shape)
$i$. Duodenum $a$. Worm-like
$ii$. Stomach $b$. $U$-shaped
$iii$. Tongue $c$. $J$-shaped
$iv$. Appendix $d$. Triangular

Study the following diagram showing $(P-S)$ labelling and choose the correct option that shows two correct matches.

$A-$ About $30\%$ of starch is hydrolyzed by salivary amylase (optimum $pH\, 6.8$) in the buccal cavity.
$R-$ The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme.

Which of the following statements is incorrect regarding the human digestive system?

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