Final answer:
The correct spelling is inguinal nodes. Inguinal nodes are lymph nodes located in the inguinal region and play a role in the immune system.
Step-by-step explanation:
The correct spelling is inguinal nodes. Inguinal nodes are lymph nodes located in the inguinal region, which is the area where the legs meet the trunk of the body. These nodes play an important role in the immune system by filtering lymph fluid and trapping harmful substances such as bacteria or cancer cells. Inguinal nodes are often examined by doctors to check for any signs of infection or disease.