Name the type of immunity that is present at the time of birth in humans. Explain any two ways by which it is accomplished.

Solution

Innate immunity. It is also called inborn or non-specific immunity. It is the first line of defence. It is composed of following steps :

1. Physical barriers. The skin and mucous membranes constitute the physical barrier of immunity. The mucous entraps the microbes and protects the body. The oil and sweat does not let any microbe grow on the skin.

2. Physiological barrier. Body temperature, pH and various body secretions like tears prevent growth of many pathogenic micro-organisms.

Some More Questions From Human Health and Disease Chapter

Name the disease caused by Wuchereria bancrofti.

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Human Health And Disease

Name the type of immunity that is present at the time of birth in humans. Explain any two ways by which it is accomplished.

Some More Questions From Human Health and Disease Chapter

Name the disease caused by Wuchereria bancrofti.

List three fungal genera which cause ringworm.

List two symptoms of ring worm.

Name the two wide spread diseases caused by Aedes mosquitoes.

Name the primary lymphoid organs.

What is the protein produced by B-cells called?

Which type of immune response does T-cells mediate?

Name the two types of T-cells ?

Name the type of immunity mediated by antibodies.

Define autoimmunity.

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