What is a lymph node?
A lymph node is a type of gland. (1)
Lymph nodes are a part of the lymphatic system. (1)

What does a lymph node look like?
A lymph node looks small and bean-shaped.

What does it do?
A lymph node plays a crucial role in the immune system. (1)
Lymph nodes filter lymphatic fluid, which helps rid the body of germs and remove waste products.
Lymph nodes filter lymphatic fluid, and catch bacteria and viruses that could harm the rest of the body. (1)
Lymph nodes come in contact with toxins, which can cause them to swell, which are then called swollen lymph nodes.
Lymph nodes destroy bacteria or damaged cells and turn them into a waste products. (1)

How many lymph nodes does the human body have?
The human body has hundreds of lymph nodes. (1)

Where are lymph nodes located?
Lymph nodes are particularly prominent in areas such as the neck, armpit, groin, and behind the ears. (1)
Lymph nodes are also present in the stomach and between the lungs. (1)

Where are lymph nodes NOT located?
There are no lymph nodes in the brain or the spinal cord. (1)

What are types of lymph nodes?
cervical lymph nodes – in the neck (1)
axillary lymph nodes – in the armpit (1)
inguinal lymph nodes – in the groin (1)

What do lymph nodes contain?
Lymph nodes contain lymphocytes. (1)

Resources:
1. https://www.medicalnewstoday.com/articles/lymph-nodes

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