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.
Swollen lymph nodes. Your lymphatic system comprises a network of organs, vessels and numerous lymph nodes situated throughout your body. Most of your lymph nodes are located in your head and neck region. Lymph nodes that frequently swell are in this area, as well as in your armpits and groin area.wollen lymph nodes. Your lymphatic system comprises a network of organs, vessels and numerous lymph nodes situated throughout your body. Most of your lymph nodes are located in your head and neck region. Lymph nodes that frequently swell are in this area, as well as in your armpits and groin area.