Final answer:
Lymph nodes are also clustered in lymphoid tissue of the pectoral region and with the mesentery in the abdomen. Lymph nodes are part of the lymphatic system and play a crucial role in immune defense.
Step-by-step explanation:
Lymph nodes are also clustered in lymphoid tissue of the pectoral region and with the mesentery in the abdomen.
Lymph nodes are part of the lymphatic system, which helps in immune defense by filtering lymph fluid and trapping pathogens. They are small, bean-shaped structures located throughout the body and are connected by lymphatic vessels.
In the pectoral region, lymph nodes are clustered within the lymphoid tissue, which is present in the breast tissue. In the abdomen, lymph nodes are found along the mesentery, which is a fold of the peritoneum that supports and connects the intestines.