Which of the following acts as a physical bar | vedclass

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(D) The innate immunity in humans consists of various barriers that prevent the entry of foreign agents into the body.Physical barriers include the sk

Vedclass · Accepted Answer

Both $(A)$ and $(B)$

Vedclass · Answer

(D) The innate immunity in humans consists of various barriers that prevent the entry of foreign agents into the body.Physical barriers include the skin and the mucus coating of the epithelium lining the respiratory,gastrointestinal,and urogenital tracts.The skin is the primary physical barrier that prevents the entry of microorganisms.The mucus membrane traps microorganisms entering our body.Saliva is a physiological barrier (chemical barrier) due to the presence of enzymes like lysozyme.Therefore,both skin and mucus membrane act as physical barriers.

Column-$I$	Column-$II$
$A$. Physiological barrier	$1$. Skin
$B$. Cellular barrier	$2$. Macrophages
$C$. Physical barriers	$3$. Interferons
$D$. Cytokine barriers	$4$. Tears
	$5$. Mucus

Which of the following acts as a physical barrier to prevent the entry of microorganisms into our body?

Similar Questions

The development of a quick immune response in a person infected with deadly microbes by administering preformed antibodies is known as:

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The immunity developed in the body after recovering from a disease is:

Select the correct pair:

Column-$I$ Column-$II$

$A$. Physiological barrier $1$. Skin

$B$. Cellular barrier $2$. Macrophages

$C$. Physical barriers $3$. Interferons

$D$. Cytokine barriers $4$. Tears

$5$. Mucus

Except for the skin,other physical barriers that also help to prevent the entry of microorganisms are:
$I.$ Mucus coating of the epithelium lining the respiratory tract
$II.$ Gastrointestinal tract
$III.$ Urogenital tract
Choose the correct option.

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