Neck Anatomy Lymph Nodes

The lymph nodes in the region of the head and neck are broadly classified into two groups. However these nodes mainly drain structures in the thorax and abdomen.

Viii The Lymphatic System 3 The Lymphatics Of The Head

Superficial lymph nodes the superficial lymph nodes of the head and neck receive lymph from the scalp face and neck.

Neck anatomy lymph nodes. The lymph nodes of the head and neck can be divided into two groups. Lymph nodes in neck and head anatomy pictures of neck muscles and glands glands in the human neck anatomy of neck glands human anatomy do not follow this link or you will be banned from the site. Total 800 lymph nodes are found in the body out of them around 300 lymph nodes are located only in the head and neck region.

They are typically found concentrated near junctions of the major lymphatic vessels most prominently in the neck groin and armpits. Lymph nodes in the neck are oval or ellipsoid in shape. A superficial ring of lymph nodes and a vertical group of deep lymph nodes.

Within the node there is generally a hypoechoic marginal zone which can be distinguished from the central hyperechoic hilar region the medullary sinuses with blood vessels and efferent lymph vessels. Lymph nodes in the neck have been divided into seven levels generally for the purpose of squamous cell carcinoma staging. Generally speaking both right and left supraclavicular lymph nodes drain the neck via efferent lymphatic vessels coming from the accessory nerve lymph node chains which belong to sublevel va.

More specifically the right supraclavicular lymph nodes drain the breast lung and upper esophagus while the left supraclavicular lymph nodes have more extensive drainage sites and drain distant regions which include but are not. As part of the lymphatic system lymph nodes serve as filters for the blood providing specialized tissues where foreign antigens can be trapped and exposed to cells of the immune system for destruction. This system is not inclusive of several important groups however such as the supraclavicular parotid retropharyngeal space and occipital nodes.

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