Immunology

Question 1

Function of the lymphatic system

Answer 1

1. Remove waste
2. Facilitate immunity
3. Transport lymph

Question 2

Primary organs of the lymphatic system

Answer 2

Bone marrow
Thymus

Question 3

Secondary organs of the lymphatic system

Answer 3

Lymph nodes
Spleen
Tonsils
Peyer´s patches

Question 4

Structure of the bone marrow

Answer 4

Red - active
White - fat inactive

Question 5

Immune function of the bone marrow

Answer 5

B-cell production and maturation
T-cell production NO maturation

Question 6

Function of the thymus

Answer 6

Maturation of T-cells

Question 7

Parts and main cell type found in the thymus

Answer 7

Cortex - B-cells
Paracortex T-cells
Medulla - Plasma cells, macrophages and lymphocytes

Question 8

Parts and function of the spleen

Answer 8

Red pulp - RBC production
White pulp - WBC production

Question 9

Knowing spleen function, what king of problem a patient will have in case of spleen dysfunction ?

Answer 9

1. Immune deficiency due to less B-cells+less iGm and lack of complement and C3b
2. Patients will be more susceptible to encapsulated bacterial infection due to need of complement + C3b to kill them
3. RBC with changes due to abnormal destruction or clearance

Question 10

What Clin path finding you will see in RBC with a spleen insufficiency ?

Answer 10

Howell-Jolly bodies
Target cells

Question 11

Where does the peyer´s patches are found?

Answer 11

In the small intestine, between lamina propia and submucosa

Question 12

What kind of cells in the small intestine are the immune cells that present antigens to B-cells?

Answer 12

M-cells