Anatomy and Cell Biology 3309 Lecture Notes - Lecture 6: Macrophage, Basal Lamina, Small Cell
6 Jul 2016
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Hes struggling with muscle control; having a hard time blinking. Diagram on the left= we have primary lymphoid organs (thymus and bone marrow) Its anterior to most of the major arteries that go through the chest cavity. This is what a thymus of a child llooks like. The lighter part is not a lymphatic nodule, it"s the medullary part of the thymus. A child"s thymus is fully functional, differentiated and all types of developing lymphocytes. On the other hand an adult"s thymus is involuted (being replaced by different tissue. So thymus in adults has less of a role in t cell education but it can be stimulated if you need to have a lot more t cells. Compared to spleen, thymus is more consistant across different mammals. Also conatains efferent lymphati vessels as well as nerves. There are trabeculae (rough skeleton that ggives shape to the organ). What it does, is that it establishes loose thymic lobules.
