Cervical lymph nodes are found in direct relationship with the internal carotid artery: Significance for the lymphatic drainage of the brain


Clapham, R., O'Sullivan, E., Weller, Roy and Carare, Roxana Octavia (2009) Cervical lymph nodes are found in direct relationship with the internal carotid artery: Significance for the lymphatic drainage of the brain. Clinical Anatomy, 23, (1), 43-47. (doi:10.1002/ca.20887). (PMID:19918869).

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Description/Abstract

The brain has no conventional lymphatics, but solutes injected into it drain along artery walls and reach lymph nodes in the neck. This study seeks to identify cervical lymph nodes related to the human internal carotid artery (ICA) that could act as the first regional lymph nodes for the brain. Bilateral dissections were carried out on four embalmed human heads, from the level of the carotid bifurcation in the neck, to the base of the skull. Lymph nodes from every specimen were processed for histological examination. A total of 51 deep cervical lymph nodes were identified: 12 lymph nodes (confirmed by histological examination) were observed to be in direct relationship with the ICA. These lymph nodes were found within the carotid sheath and had average diameters of 13.5 × 4.8 mm. Solutes and interstitial fluid from the brain may drain along the walls of cerebral arteries and reach these lymph nodes. They may be sites of stimulation of immune responses against antigens from the brain.

Item Type: Article
ISSNs: 0897-3806 (print)
1098-2353 (electronic)
Alternative titles: Original Communication. Cervical lymph nodes are found in direct relationship with the internal carotid artery: Significance for the lymphatic drainage of the brain
Keywords: lymph nodes, carotid sheath, internal carotid artery, brain, immune responses, interstitial fluid, perivascular, Aβ
Subjects: R Medicine > RB Pathology
R Medicine > RC Internal medicine
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Divisions: University Structure - Pre August 2011 > School of Medicine > Clinical Neurosciences
ePrint ID: 142315
Date Deposited: 31 Mar 2010 14:25
Last Modified: 27 Mar 2014 19:04
URI: http://eprints.soton.ac.uk/id/eprint/142315

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