Structure of the Immune System - Primary lymphoid organs - Thymus
3 important questions on Structure of the Immune System - Primary lymphoid organs - Thymus
What is the structure of the Thymus?
- Consists of 2 lobes
- Lobes are divided by septa originating from a thin connective tissue capsule
- Blood vessels run through the septa
- Cortex is peripheral and darker
- Medulla is center and light
What are reticular cells in the Thymus (3)?
- they form a cellular reticulum
- it provides support for the other cells
- they create and maintain the good microenvironment for development of T-lymphocytes
What cells are present where (3)?
- reticular cells
- macrophages in cortex and medulla
- lymphocytes more in cortex, but present in both, most will develop into T-lymphocytes
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