Immunity Disorders

Question 1

Allergy

Answer 1

The inappropriate response of the immune system to certain antigens is called allergy

Question 2

Other name of allergy

Answer 2

Hypersensitivity

Question 3

Antobodies production on allergy

Answer 3

IG E

Question 4

Substance causing allergy

Answer 4

Allergens

Question 5

What happens on first contact?

Answer 5

IGE produced bind to the FC receptors of mast cells and basophils
This is called sensitisation

Question 6

What happens on 2nd contact?

Answer 6

Allergen cross links between two FC receptors and this causes the degranulation of mast cells and it releases
Histamine
Bradykinin
Serotonin
Prostaglandins

Question 7

What happens when histamine is released?

Answer 7

Dilutes the blood vessels
Oedema- swelling
And redness- erythema 
Contraction is smooth muscle
This attracts the neutrophils and eosinophils

Question 8

Asthma

Answer 8

Allergic reaction on the lower respiratory tract

Sneezing, difficulty in breathing( due to constriction in smooth muscle), running nose

Question 9

How to control asthma

Answer 9

Aerosol inhalants

Question 10

For determining cause of allergy what is done ?

Answer 10

Very small dose of possible alergen is given to patients and then quickly Anti histamine, steroids, adrenalin is given to reduce the symptoms

Question 11

How to desensitised allergy

Answer 11

Giving injections of the antigen which leads to the formation of blocking antibodies IgG

Question 12

Anaphylaxis

Answer 12

Serious life threatening allergic reaction

Question 13

Common anaphylactic reaction

Answer 13

Food, insect stings,meditation,and latex