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Related Concept Videos

Detailed Structure and Function of Lymph Nodes01:23

Detailed Structure and Function of Lymph Nodes

Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
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Secondary Lymphoid Organs

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Primary Lymphoid Organs01:16

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Lymphoid Cells and Tissues01:18

Lymphoid Cells and Tissues

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Development of the Lymphatic System01:15

Development of the Lymphatic System

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The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...

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Updated: Jul 4, 2026

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
07:36

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting

Published on: May 1, 2015

Senile changes in human lymph nodes.

Wei-Ren Pan1, Hiroo Suami, G Ian Taylor

  • 1The Jack Brockhoff Reconstructive Plastic Surgery Research Unit, Royal Melbourne Hospital, and Department of Anatomy and Cell Biology, University of Melbourne, Grattan Street, Parkville 3050, Victoria, Australia. w.pan@unimelb.edu.au

Lymphatic Research and Biology
|June 21, 2008
PubMed
Summary
This summary is machine-generated.

This study reveals that lymph node degeneration is a continuous process affecting head and neck anatomy. Understanding this senile involution is crucial for explaining age-related immune decline and cancer metastasis.

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Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy
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Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

Published on: August 9, 2019

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Last Updated: Jul 4, 2026

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
07:36

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting

Published on: May 1, 2015

Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy
07:40

Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

Published on: August 9, 2019

Area of Science:

  • Anatomy
  • Histopathology
  • Gerontology

Background:

  • The degenerative changes in lymph nodes are not well-documented.
  • Lymph node function is critical for immune response.

Purpose of the Study:

  • To document the anatomical and histopathological features of lymph node degeneration.
  • To investigate the process of senile involution in human lymph nodes.

Main Methods:

  • Examination of 161 lymph nodes from human cadavers (head and neck region).
  • Utilized hydrogen peroxide and lead oxide for lymphatic vessel visualization via radiographs.
  • Performed histopathological cross-section analysis on fixed lymph nodes.

Main Results:

  • Identified 38 solidified and 123 transparent lymph nodes.
  • Histopathology confirmed a variable and continuous degenerative process.
  • Senile involution impacted all lymph node components: cortex, medulla, and overall architecture.

Conclusions:

  • Provided anatomical and histopathological evidence of lymph node degeneration in the head and neck.
  • Findings may elucidate age-related diminished immune responses to infection and cancer.
  • Highlights the importance of lymph node status in elderly populations.