If you do not sign up for Medicare Part B when you are first eligible, you may need to pay a late enrollment penalty for as long as you have Medicare. Your monthly Part B premium could be 10% higher for every full 12-month period that you were eligible for Part B, but didn't take it.
The human body contains lymph nodes throughout, primarily in the head and neck, but also under the arms and in the groin. The lymphatic system consists of lymph nodes along with a number of organs and vessels. Keep Learning.
In the lymph nodes, cells from the bodyâs natural defense system, called lymphocytes, help fight bacteria and viruses. Networks of the lymphatic system are situated in several areas of the body with a specific drainage pathway for each individual area.Superficial Lymph Nodes Include: 1  Axillary: Located under each arm, these nodes receive fluid from the arm, chest, back, and breast tissue.eep Lymph Nodes Include: 1  Supraclavicular: Located at the neck just above the collar bones, this important node group receives fluid from the head and shoulders. 2  Deep Abdominal/Pelvic Nodes: The abdomen is richly invested in lymph nodesâthey surround the organs and intestines.