Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Rhesus monkey, Helly's fluid, H. & E., 162 x.
Cortex: This is located underneath the capsule. Formed of a series of closely packed regularly arranged lymph nodules.
Medulla: Formed of anastomosing cords of lymphocytes separated by the abundant lymphatic sinuses.
Capsule: Well-defined connective tissue cover from which septa or trabeculae penetrate the substance of the lymph node.
Cortical sinus: Lymphatic sinus separates cortical nodules from the capsule. Lymph from the afferent lymphatic vessels enters the node via the cortical sinus.
Lymph nodule: Closely packed aggregate of lymphocytes in the cortex of the node. Also known as cortical follicles or primary nodules. Lymphatic nodules are temporary structures that may develop, disappear, and redevelop. The size and number of nodules vary widely.
Germinal center: Also known as secondary nodule or reaction center. The lighter-staining area in the center of the lymph nodule. It varies in size with age, being best developed in childhood. It is believed to be a cytogenic or lymphocytopoietic center. It is a temporary structure like lymph nodules.
Blood vessels: Branches of the artery that enter at the hilus of the node.
Next Page | Previous Page | Section Top | Title Page
Please send us comments by filling out our Comment Form.
All contents copyright © 1995-2018 the Author(s) and Michael P. D'Alessandro, M.D. All rights reserved.
"Anatomy Atlases", the Anatomy Atlases logo, and "A digital library of anatomy information" are all Trademarks of Michael P. D'Alessandro, M.D.
Anatomy Atlases is funded in whole by Michael P. D'Alessandro, M.D. Advertising is not accepted.
Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.
The information contained in Anatomy Atlases is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.