Pylorus

pyloric sphincterpyloricpyloric antrumpyloric valveantrumgastric antrumantral portion of the stomachpyloric antriumpyloric canalpyloric orifice
The pylorus ( or ), or pyloric part, connects the stomach to the duodenum.wikipedia
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Duodenum

duodenaldodecadactylumduodenal cap
The pylorus ( or ), or pyloric part, connects the stomach to the duodenum. Food from the stomach, as chyme, passes through the pylorus to the duodenum.
The first part, or superior part, of the duodenum is a continuation from the pylorus to transpyloric plane.

Digestion

digestivedigestdigested
It may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric sphincter; it is demarcated, sometimes, from the pyloric canal by a slight groove.
When the pyloric sphincter valve opens, chyme enters the duodenum where it mixes with digestive enzymes from the pancreas and bile juice from the liver and then passes through the small intestine, in which digestion continues.

Sphincter

sphincterssphincter muscle
It may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric sphincter; it is demarcated, sometimes, from the pyloric canal by a slight groove. The orifice is surrounded by a sphincter, a band of muscle, called the pyloric sphincter.

Peristalsis

peristalticgut motilityperistaltic contractions
It may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric sphincter; it is demarcated, sometimes, from the pyloric canal by a slight groove.
Once processed and digested by the stomach, the milky chyme is squeezed through the pyloric sphincter into the small intestine.

Gastrin

hypergastrinemiaGASTgastrins
The glands contain mucus cells and G cells that secrete gastrin.
It is released by G cells in the pyloric antrum of the stomach, duodenum, and the pancreas.

Gastric pits

gastric pit
Under microscopy, the pylorus contains numerous glands, including gastric pits, which constitute about half the depth of the pyloric mucosa.
They are deeper in the pylorus than they are in the other parts of the stomach.

Stomach

gastriccardiafundus
The pylorus ( or ), or pyloric part, connects the stomach to the duodenum. Food from the stomach, as chyme, passes through the pylorus to the duodenum.
The pyloric sphincter controls the passage of partially digested food (chyme) from the stomach into the duodenum where peristalsis takes over to move this through the rest of the intestines.

Somatostatin

somatostatin analogueGHIHgrowth hormone inhibiting hormone
These endocrine cells including D cells, which release somatostatin.
Somatostatin is secreted by delta cells at several locations in the digestive system, namely the pyloric antrum, the duodenum and the pancreatic islets.

Chyme

Chymuschyme digestivegastric chyme
Food from the stomach, as chyme, passes through the pylorus to the duodenum.
Chyme or chymus (from Greek χυμός khymos, "juice" ) is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum (the beginning of the small intestine).

Pyloric stenosis

hypertrophic pyloric stenosisInfantile hypertrophic pyloric stenosisCongenital hypertrophic pyloric stenosis
Pyloric stenosis refers to a pylorus that is narrow.
Pyloric stenosis is a narrowing of the opening from the stomach to the first part of the small intestine (the pylorus).

Mucous membrane

mucosamucous membranesmucosal
Under microscopy, the pylorus contains numerous glands, including gastric pits, which constitute about half the depth of the pyloric mucosa. The duct is lined by columnar cells, continuous with the epithelium lining the surface of the mucous membrane of the stomach, the tubes by shorter and more cubical cell which are finely granular.

Gastrointestinal tract

intestinegastrointestinaldigestive tract
The pylorus is one component of the gastrointestinal system.
These include the esophagus, pylorus of the stomach, distal duodenum, ascending colon, descending colon and anal canal.

Gastroduodenostomy

This tube is called a gastroduodenostomy.
This procedure may be performed in cases of stomach cancer or in the case of a malfunctioning pyloric valve.

Greek language

GreekAncient GreekModern Greek
The word pylorus comes from Greek πυλωρός, via Latin.

Latin

Pylon (architecture)

pylonpylonsEgyptian pylon
The word pylorus in Greek means "gatekeeper", related to "gate" (pyle) and is thus linguistically related to the word "pylon".

Valve

valvesinlet valveinlet valves
The pyloric sphincter, or valve, is a strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the stomach to the duodenum.

Sympathetic nervous system

sympatheticsympathetic nervesympathetic nerves
It receives sympathetic innervation from the celiac ganglion.

Celiac ganglia

celiac ganglionceliacGanglion coeliacum
It receives sympathetic innervation from the celiac ganglion.

Microscopy

light microscopymicroscopistmicroscopic
Under microscopy, the pylorus contains numerous glands, including gastric pits, which constitute about half the depth of the pyloric mucosa.

Gland

glandsglandularglandular tissue
Under microscopy, the pylorus contains numerous glands, including gastric pits, which constitute about half the depth of the pyloric mucosa.

Epithelium

epithelialepithelial cellsepithelial cell
The duct is lined by columnar cells, continuous with the epithelium lining the surface of the mucous membrane of the stomach, the tubes by shorter and more cubical cell which are finely granular.

G cell

G cellsgastrin-secreting cellsG-cells
The glands contain mucus cells and G cells that secrete gastrin.

Parietal cell

parietal cellscanaliculiparietal
The pylorus also contains scattered parietal cells and neuroendocrine cells.

Neuroendocrine cell

neuroendocrineneuroendocrine cellscell
The pylorus also contains scattered parietal cells and neuroendocrine cells.