THE HISTOLOGY OF LYMPHOID SYSTEM

What are the central/primary lymphoid tissue?

• Bone marrow

• Thymus

• Spleen

• Lymph nodes

What are the peripheral/secondary lymphoid tissue?

• Lymph node

• Spleen

• Diffuse lymphatic tissue

• Lymph fluid

These are all lymphoid system's functions EXCEPT

• Collect access interstitial fluid into lymph capillaries

• Transport absorbed lipid from small intestine

• Respond immunologically to invading foreign substances

• Transport lymph to the whole body in a two-way circulation system

How does immune system's cells distributed throughout the body?

• As single cells

• As isolated accumulation of cells

• As distinct non-encapsulated lymph nodules

• As encapsulated individual lymphoid organ

• As accumulation at the lobules of encapsulated lymph organs

What is this?

(a)  

The lymph nodes has 2 sections, which are .. ?

• Medulla and Cortex

• Medulla and Lobular

• Cortex and Cords

• Lobular and Cords

What is this?

• Lymph node

• Spleen

• Thymus

• Bone marrow

This is the histology of lymph node. How do we differentiate its sections? (Cortex and Medulla)

• Light staining Cortex

• Light staining Medulla

• Dark staining Cortex

• Light staining Medulla

What are the encapsulated organs of lymphoid system?

• Lymph node

• Spleen

• Thymus

• Bone marrow

The cortex of Lymph Nodes consists of .. ?

• Reticular fibers

• Lymphoid nodules

• Medullary cords

• Medullary sinuses