Final answer:
There are typically about 20 to 25 axillary lymph nodes in the armpit region adjacent to the breasts. They are crucial for the immune system and are examined in breast cancer diagnoses.
Step-by-step explanation:
The question 'How many axillary nodes are present in the breast?' relates to the anatomy of the human body, specifically within the context of the lymphatic system in relation to the breast. The axillary lymph nodes, often referred to simply as the armpit nodes, are not present in the breast tissue itself but rather in the axillary (armpit) region adjacent to the breasts. While the exact number of axillary nodes can vary from person to person, typically there are about 20 to 25 axillary lymph nodes.
These lymph nodes play a crucial role in the lymphatic system, which is a component of the immune system. They help filter lymph fluid and trap bacteria, viruses, and other unwanted substances. They are also clinically significant, as they are evaluated in cases of breast cancer for the presence of cancer cells that may have spread from the primary tumor site.