cell canaliculus, generating one of the steepest ion gradients in mammalian tissues. Parietal cells are primarily regulated via histamine, acetylcholine and gastrin signalling from both central and local modulators.

Structure

Canaliculus

A canaliculus is an adaptation found on gastric parietal cells. It is a deep infolding, or little channel, which serves to increase the surface area, e.g. for secretion.

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