Diagram Lymph Nodes Head Neck Lymph nodes are small, bean shaped structures that are an important part of the lymphatic system, which is a vital component of the immune system. lymph node. Historically, the lymph nodes in the neck have been anatomically divided into at least six neck lymph node levels for head and neck cancer staging and therapy planning purposes. differing definitions exist across specialties 1 4. the following is a synthesis of radiologically useful boundaries for each level. level i: submental and submandibular.
Cervical Lymph Nodes Diagram The superficial lymph nodes of the head and neck receive lymph from the scalp, face and neck. they are arranged in a ring shape; extending from underneath the chin, to the posterior aspect of the head. they ultimately drain into the deep lymph nodes. occipital: there are usually between 1 3 occipital lymph nodes. As a general anatomic region, the head and neck are characterized by many critical structures in a relatively small geographic area. it includes osseous, nervous, arterial, venous, muscular, and lymphatic structures. lymphadenopathy is a significant clinical finding associated with acute infection, granulomatous disease, autoimmune disease, and malignancy. the involvement of specific nodal. Ii upper jugular. level ii receives lymphatics from the face, the parotid gland, and the submandibular, submental and retropharyngeal nodes. level ii also directly receives the collecting lymphatics from the nasal cavity, the pharynx, the larynx, the external auditory canal, the middle ear, and the sublingual and submandibular glands . Key points about the lymph nodes of the head; facial nodes buccinator, nasolabial, malar, mandibular nodes drainage: lateral eyelid, nose and cheek direction of flow: facial nodes → submandibular nodes → jugulodigastric node → inferior deep lateral cervical nodes → supraclavicular nodes → jugular trunk → thoracic duct (left) or right lymphatic duct.
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