parietal cell


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pa·ri·e·tal cell

one of the cells of the gastric glands; it lies on the basement membrane, covered by the chief cells, and secretes gastric intrinsic factor and HCl, the latter of which reaches the lumen of the gland through fine intracellular and intercellular canals (canaliculi).
Synonym(s): acid cell, oxyntic cell

parietal cell

n.
One of the large peripheral cells of the mucous membrane of the stomach that secrete hydrochloric acid.

pa·ri·e·tal cell

(pă-rī'ĕ-tăl sel)
One of the cells of the gastric mucosa; it lies on the basement membrane, covered by the chief cells, and secretes hydrochloric acid, which reaches the lumen of the gland through fine intracellular and intercellular canals (canaliculi).
Synonym(s): acid cell, oxyntic cell.

oxyntic cell

or

parietal cell

any of the glandular cells lying in pits within the wall of the vertebrate stomach. Their function is to secrete hydrochloric acid, giving the gastric fluids a pH of about 2.0.
References in periodicals archive ?
PA is macrocytic anemia due to vitamin B12 deficiency as a result of deficiency of intrinsic factor because of the atrophy of gastric mucosa and thus the loss of parietal cells.
Recent evidence suggests that H pylori can trigger the development of autoimmune atrophic gastritis through a process of molecular mimicry in which the bacterial organisms take on the antigenic appearance of parietal cells.
2] receptors at gastric parietal cells or influence the intracellular mechanisms involved with histamine activity.
The vitamin then forms a complex with intrinsic factor, a specific glycoprotein that is secreted postprandially by parietal cells in the gastric lining, and moves toward the ileum to attach to receptors on the terminal ileum membrane.
In Potamogeton the parietal cell divides both anticlinally and periclinally to form four cell layers between the megasporocyte and the nucellar epidermis.
Tests for antibodies to parietal cells and intrinsic factor also may be ordered.
Development continues with the mitotic division of the archesporium cell, producing a parietal cell and a primary sporogenous cell (Fig.
Histamine stimulates gastric acid secretion by direct interaction at the parietal cell [H.
Also among this group, 1 patient had positive intrinsic antibodies, 3 had elevated parietal cell antibody titers, 7 had high fasting gastrin levels, and 2 of the 12 patients tested had abnormal Schilling tests.
ATPase, the key enzyme in the final acid production pathway within the parietal cell.
The stomach's parietal cells are challenged to determine the parietal cell health and stomach-emptying time.