Humoral Immunity or cellular immune response

BM -Bursa - Thymus

Thymus gland
Bursa of Fabricius
Bone marrow
Then Enter

B lymphocytes
T lymphocytes
T and B lymphocytes enter 2ry lymphoid organs (Spleen and lymph nodes) for proliferation and differentiation
Cellular Immunity or cellular immune response
Humoral Immunity or cellular immune response

Cellular Immunity or cellular immune response is called Cell mediated Immunity or Cell mediated immune response
Humoral Immunity or Humoral immune response is called antibody mediated Immunity or antibody mediated immune response

Natural killer (NK) cells are also known as large granular lymphocytes (LGL) because they resemble lymphocytes in their morphology, except that they are slightly larger and have numerous granules. NK cells are capable of killing virus infected and malignant target cells by perforin and Granzymes (process called Apoptosis)

Ab production

Ig = Immunoglobulin Structure

Structural Regions

III. BASIC STRUCTURE OF IMMUNOGLOBULINS
Although different immunoglobulins can differ structurally they all are built from the same basic unit.

Ab Structure

A. Heavy and Light Chains
All immunoglobulins have a four chain structure as their basic unit. They are composed of two identical light chains and two identical heavy chains
B. Disulfide bonds
1. The heavy and light chains and the two heavy chains are held together by inter-chain disulfide bonds interactions.

C. Variable (V) and Constant (C) Regions
both the heavy and light chain could be divided into two regions based on variability in the amino acid sequences:
Light Chain - VL and CL
2. Heavy Chain - VH and CH

Types of T cells
T- Helper (CD4 T cells)
Helps T-cytotoxic
Helps B cells
Helps NK cells
T- Cytotoxic (CD8 T cells)
T- Regulatory