Test 1

Question 1

Classification of immune system

Answer 1

-its divided into 2 :
1-adaptive : which is specific 20 line of defense protects the organism and it have two type: humoral components, cellular components

2-innate : non specific 1 line of defense and it has two types : cellular and humoral components

Question 2

Comparison of innate and adaptive immunity

Answer 2

1-Adaptive immunity:
1.1 A lag period
1.2 antigen specific
1.3 development of memory

-2 innate immunity:
2.1 no time lag
2.2 not specific
2.3 no memory development

Question 3

explain the Cells of immune system

Answer 3

—there is 2 type of cells :
1-Myeloid cells :
1.1 Granaulocytes : neutrophils , basiphils , Eosinophil’s
1.2 Monocytes : Macrophages, Kupffer cells , Dedtic cells

2- Lymphoid cells :
2.1 T cells : helper cells , Supperssor cells , cytotoxic cells
2.2 B cells : Plasma cells
2.3 Natural killer NK cells

Question 4

Function of the immune system

Answer 4

1- to protect from pathogens by :
1.1 intracellular mechanism: for viruses, bacteria, parasites
1.2 Extracellular mechanism: most for bacteria, fungi, parasites
2- to eliminate modified or altered Self

Question 5

Effect of Immune system

Answer 5

1- Beneficial:
1.1 protection from invaders
1.2 Elimination of altered Self

2-Detrimental:
2.1 discomfort and collateral damage ( inflammation)
2.2 damage of self : hypersensitive reaction

Question 6

describe The anatomical barrier, mechanical factors

Answer 6

1-System organ : Skin
2- cell type : squamous epithelium
3-mechanism: physical barrier
4-components : sweat
5-mechanism of sweat : Antimicrobial fatty acids
6- skin and mucosa membrane
7-Normal flora
8- mechanism of Antimicrobial substance : Competition for nutrients and colonization