Reticular tissue

Japanese: 細網組織 - さいもうそしき（英語表記）reticular tissue

A type of connective tissue found in hematopoietic tissues such as the spleen, lymph nodes, and bone marrow, as well as in the thymus. It is the main part of the reticuloendothelial system. The basic cells are reticular cells with argyrophilic reticular fibers on their surface, with long projections that connect them together in a mesh-like pattern, and the spaces between the mesh are filled with blast cells that produce various types of blood cells, mainly lymphocytes. Reticular cells not only perform phagocytosis, but also produce antibodies against foreign substances. Their numbers increase rapidly during infection, causing the spleen and lymph nodes to enlarge. At this time, some cells exhibit migratory properties and appear at the site of infection.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

脾臓，リンパ節，骨髄などの造血組織や胸腺などにみられる結合組織の一種。細網内皮系の主要部分である。基本細胞は，表面に銀好性の細網線維をもつ細網細胞で，長い突起があり，互いに網状に結合しており，その網目の間にはリンパ球を主とする各種の血球をつくる芽細胞が充満している。細網細胞は食作用を営むばかりでなく，異物に対しては抗体をつくる。感染に際して急速に数が増加し，脾臓やリンパ節を肥大させる。このとき，一部の細胞は遊走性を示し，感染局所に現れる。

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