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Human Health and Disease

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

To which type of barriers under innate immunity, do the saliva in the mouth and the tears the eyes, belong?

  • Cytokine barriers

  • cellular barriers

  • Physiological barriers

  • physical barriers


C.

Physiological barriers

Innate immunity is the resistance to infection, which an individual possess by virtue of his/her genetic and constitutional makeup. Thus, it comprises all those defence elements with which an individual is born and , which are always available to protect a living body. Physiological barriers like body temperature, pH of the body fluid, and various body secretions (saliva, tears) prevent the growth of many disease causing micro-organisms. 
Skin is the physical barrier of the body. Its outer tough layer the stratum corneum pervents the entry of bacteria and viruses.

Innate immunity is the resistance to infection, which an individual possess by virtue of his/her genetic and constitutional makeup. Thus, it comprises all those defence elements with which an individual is born and , which are always available to protect a living body. Physiological barriers like body temperature, pH of the body fluid, and various body secretions (saliva, tears) prevent the growth of many disease causing micro-organisms. 
Skin is the physical barrier of the body. Its outer tough layer the stratum corneum pervents the entry of bacteria and viruses.

293 Views

Name three important aspects to maintain good health.

(i) Balanced diet (ii) Personal hygiene and (iii) Regular exercise.
741 Views

What is health ?

It is a state of complete, physical, mental and social well being of a person.
911 Views

What is the significance of ‘Typhoid Mary’ ?

Typhoid Mary was a Typhoid carrier who continued to spread typhoid for several years through food she prepared.
616 Views

List advantages of good health.

Healthy people are more efficient and productive. good health also brings prosperity and people live long. It also reduces infant and maternal mortality.
588 Views

What is disease ?

Malfunctioning of one or more organs characterised by signs and symptoms is called disease.
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