Lymph is contained within the lymphatic system, which permeates throughout the body. Key areas containing lymph and lymph nodes include the neck, axilla (armpit), thorax (chest), abdomen, and groin. These lymph nodes filter incoming lymph.
According to the reference material:
Lymph nodes are found at the convergence of major blood vessels, and an adult will have approximately 800 nodes commonly sited in the neck, axilla, thorax, abdomen, and groin. These filter incoming lymph and play a role in infection as well as in malignancy.
