The 'tubulovesicular system' in resting parietal cells refers to:
Show answer and explanation
Correct answer: Membrane vesicles that merge with canaliculi
In inactive parietal cells, the H+/K+ ATPase pumps are stored in cytoplasmic tubulovesicles. Upon stimulation, these vesicles fuse with the cell membrane to form expanded intracellular canaliculi.
Keep practicing
More Gastric Glands questions
- Which hormone is secreted by D-cells in the gastric glands to inhibit the secretion of gastrin and HCl?
- Which of the following describes the shape of the gastric glands in the fundus and body?
- Surface mucous cells are replaced approximately every:
- Which structure prevents the back-diffusion of hydrochloric acid into the lamina propria of the gastric mucosa?
- The basophilia seen in the basal region of Chief cells is due to the presence of:
- Cardial glands are primarily composed of which cell type?