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The cortex of a lymph node is the outer portion of the node, underneath the capsule and the subcapsular sinus. [17] It has an outer part and a deeper part known as the paracortex. [17] The outer cortex consists of groups of mainly inactivated B cells called follicles. [5] When activated, these may develop into what is called a germinal centre. [5]
The substance of a lymph node consists of lymphoid follicles in an outer portion called the cortex. The inner portion of the node is called the medulla , which is surrounded by the cortex on all sides except for a portion known as the hilum .
The lobes consist of an outer cortex rich with cells and an inner less dense medulla. [4] The lobes are divided into smaller lobules 0.5-2 mm diameter, between which extrude radiating insertions from the capsule along septa. [1] The cortex is mainly made up of thymocytes and epithelial cells. [3]
A lymph node is small, capsulated lymphoid organ that is present along the lymphatic system. It is composed of cortex and medulla. The cortex is also divided into outer cortex and inner cortex (also known as the paracortex). The outer cortex is composed of follicles of B cells so that it is called the B-cell zone.
Lymph nodes of the lungs: The lymph is drained from the lung tissue through subsegmental, segmental, lobar and interlobar lymph nodes to the hilar lymph nodes, which are located around the hilum (the pedicle, which attaches the lung to the mediastinal structures, containing the pulmonary artery, the pulmonary veins, the main bronchus for each side, some vegetative nerves and the lymphatics) of ...
The lymph node cortex is the outer layer of the lymph node. Cerebral cortex ... In addition, motor functions have been attributed to the posterior parietal cortex, ...
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Lymph node stromal cells are essential to the structure and function of the lymph node whose functions include: creating an internal tissue scaffold for the support of hematopoietic cells; the release of small molecule chemical messengers that facilitate interactions between hematopoietic cells; the facilitation of the migration of hematopoietic cells; the presentation of antigens to immune ...