Last Updated：2025/11/24

(biology) An intercellular junction between epithelial cells whose membranes join together to form a virtually impermeable barrier to fluid.

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tight junction

Source Word

tight junction

(biology) An intercellular junction between epithelial cells whose membranes join together to form a virtually impermeable barrier to fluid.

Japanese Meaning

上皮細胞などの細胞間に存在し、隣接細胞が密接に接して細胞間を封鎖することで、液体や分子の透過を防ぐ実質的に不透過な細胞接合部位

The tight junction between intestinal epithelial cells acts as a nearly impermeable barrier that controls paracellular transport.

腸の上皮細胞間の密着結合は、ほとんど透過性のないバリアとして働き、細胞間輸送を制御する。

Sense（1）

(biology) An intercellular junction between epithelial cells whose membranes join together to form a virtually impermeable barrier to fluid.

tight junctions

（ plural ）