L1

Question 1

Lack of immunity is callled……..

Answer 1

Susceptibility

Question 2

The types of immunity are ……

Answer 2

1- Genetic
2-Acquired immunity

Question 3

The types of acquired immunity are

Answer 3

1-passive …….(natural,artificial)
2-active ………..(natural , artificial)

Question 4

The concepts are …

Answer 4

1.innate
2. Adaptive

Question 5

First line of defence formed of ……..

Answer 5

1-physical factors
2-chemical factor
3-normal microbiota

Question 6

Physical factors are

Answer 6

1-skin
2-lacrimal apparatus
3-mucous traps
4-secretion like of urinary tract or vagina

Question 7

Chemical factors are

Answer 7

1-sebum
2-perspiration
3-laysozyme. (Tear, saliva ,nasal secretions, gastric juice…..)

Question 8

Normal microbiota and innate immunity by

Answer 8

١-ممكن تغير بعض البكتيريا البيئة المحيطة و تسبب بموت مسبب المرض مثل تغيير ال ph وال oxygen availability كمثال بكتيريا ال Candida albicans تمنع الخميرة من ال vaginitis
2- some of normal flora prevent pathogens from colonizing the host by competing with them for nutrients or producing substances that harmful to the pathogens
3- E-coli bacteria produce bacteriocins that inhibit the growth of salmonella and shigella