Flashcards in Digestion Deck (31):
A secretion of the liver consisting of water, bile salts, bile pigments, cholesterol, lecithin, and several ions; it emulsifiers lipids prior to their digestion
A soft rounded mass, usually food, that is swallowed.
The secreting cell of a gastric gland that produces pepsinogen, the precursor of the enzyme pepsin, and the enzyme gastric lipase. Cell in the parathyroid glands that secretes parathyroid hormone(PTH)
The semi fluid moisture of partly digested food and digestive secretions found in the stomach and small intestine during digestion of a meal
The portion of the large intestine consisting of ascending, transverse, descending, and sigmoid portions.
The act of swallowing
The mechanical and chemical breakdown of food to simple molecules that can be absorbed and used by body cells.
The dispersion of large lipid globules into smaller, uniformly distributed particles in the presence of bile.
The part of the nervous system that is embedded in the submucosa and muscularis of the GI tract; governs motility and secretions of the GI tract
Enteric nervous system ENS
A cell of the mucosa of the GI tract that secrets hormones that governs function of the GI tract
Glands in the mucosa of the stomach composed of cells that empty their secretions into narrow channels called gastric pits.
A continuous tube running through the ventral body cavity extending from the mouth to the anus. Also called alimentary canal.
A liver cell
A gland that opens into the surface of the intestinal mucosa and secrets digestive enzymes. Also called a crypt lieberkuhn
One of the many lymphatic vessels in villi of the intestines that absorb triglycerides and other lipids from digested foods.
Microscopic, finger like projections of the plasma membranes of cells that increase surface area for absorption, especially in the small intestine and proximal convoluted tubules of the kidneys.
A muscular layer of an organ
A network of autonomic axons and postganglionic cell bodies located in the muscularis of the GI tract
A type of secretory cell in gastric glands that produces HCL acid and intrinsic factor.
One of the paired salivary glands located inferior and anterior to the ears and connected to the oral cavity via a duct that opens into they inside of the cheek opposite the maxillary second molar tooth.
Protein-digesting enzyme secreted by chief cells of the stomach in the inactive form pepsinogen, which is converted to the active pepsin by HCL
Successive muscular contractions along the wall of a hollow muscular structure
The largest serous membrane of the body that lines the abdominal cavity and covers the viscera within it.
An enzyme in saliva that initiates the chemical breakdown of starch.
One pair of salivary gland situated in the floor of the mouth deep to the mucous membrane and to the side if the lingual frenulum, with a duct that opens into the floor of the mouth.
One of a pair of salivary glands found inferior to the base of the tongue to the mucous membrane in the posterior part of the floor of the mouth, posterior to the sublingual glands, with a duct situated on the side of the lingual frenulum.
A layer of connective tissue located deep to a mucous membrane, as in the GI tract or the urinary bladder; the submucosa connects the mucosa to the muscularis layer.
A network of autonomic nerve fibers located in the superficial part of the submucous layer of the small intestine.
A projection of the intestinal mucosal cells containing connective tissue, blood vessels, and a lymphatic vessel; functions in the absorption of the end products of digestion