Lymph nodes

Lymph nodes are small encapsulated structures that protect the body from foreign antigens. They do this by acting as a filter, trapping the particulate matter in the lymph that percolates through them^[1].

Lymph nodes can be many different sizes and contain macrophages and lymphocytes (two different types of leucocytes) within their sinuses. These are essential in the immune system^[2].

References

↑ Drake, R. Wayne Vogl, A. and Mitchell, A (2009). Gray's Anatomy. 2nd ed. Churchill Livingstone, p.32.
↑ Baggaley, A. (2001). Human Body. London: Dorling Kindersley, p.190.

During periods of illness, lymph nodes tend to swell and increase size in response to the infection.

[1] Drake, R. Wayne Vogl, A. and Mitchell, A (2009). Gray's Anatomy. 2nd ed. Churchill Livingstone, p.32.

[2] Baggaley, A. (2001). Human Body. London: Dorling Kindersley, p.190.

[1]

[2]

Lymph nodes

References

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