MAin components of immune system

Question 1

Thymus`

Answer 1

cortex - collection of t lymphocytes
medulla - sparsely populated w lymphocytes
site of t cell maturation

Question 2

Bone marrow

Answer 2

Red BM - site of haematopoeisis, flat bones

Yellow BM - hollow interior of long bones

Question 3

WHat are primary lymphoid tissue

Answer 3

thymus and bone marrow

Question 4

What are secondary lymphoid tissue

Answer 4

encapsulated tissue and unencapsulated tissue

Question 5

Encapsulated tissue

Answer 5

spleen and lymph node

Question 6

Unencapsulated tissue

Answer 6

aggregation of immmune cells

tonsils, galt, under epithelium of oesophagus and intestine

Question 7

Cells of immune system

Answer 7

White blood cells, macrophages, NK cells (natural killer), dendritic cells,
T cells, B cells. Granulocytes (N-phagocytes, B-histamine, E), cytoxic cellsantigen presenting cells

Question 8

Molecules of immune system

Answer 8

Immunoglobulin (Antibodies, gamma globulins), receptors that hold
antigen to surface of immune cells (BCR/TCR/TCL), MHC glycoproteins
(HLA molecules), cytokines (mediators of immune system-keep balance of
B+T cell response), complement proteins in serum, CD molecules (cluster
fuck of differentiation