Lymph Nodes Overview

Definition of Lymph Nodes:
- Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They help in filtering lymph fluid and are crucial for immune response.
Characteristics of Lymph Nodes:
- Some lymph nodes can be palpated (felt) especially when they are enlarged.
- The enlargement of lymph nodes may indicate infection or disease.
Types of Lymph Nodes by Location:
- Superficial Lymph Nodes: These lymph nodes are located just beneath the skin and can be assessed through physical examination.
- Regions where Superficial Lymph Nodes are Found:
  - Cervical Lymph Nodes (Neck):
  - These nodes are located in the neck region. They often become enlarged in response to head or neck infections, as well as systemic diseases.
  - Axillary Lymph Nodes (Armpit):
  - Situated in the armpit area, these nodes can swell due to breast infections or lymphatic drainage issues.
  - Inguinal Lymph Nodes (Groin):
  - Positioned in the groin region, enlargement of these nodes can result from infections in the lower limbs or genitals.
Importance of Assessing Lymph Nodes:
- They play a crucial role in the body's immune system by filtering pathogens and facilitating the action of immune cells.
- Their size and condition can provide valuable diagnostic information about underlying health conditions.