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nutrition Chapter 8
essentials of nutrition and diet therapy
40
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Undergraduate 1
12/10/2007

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Term
The four types of muscles in the intestine are:
Definition
longitudinal, circular, sphincter, and mucosal.
Term
An important role of mucus in the stomach is to:
Definition
protect the stomach wall from digestion.
Term
The hormone that increases secretion of hydrochloric acid in the stomach is:
Definition
gastrin
Term
Most digestion occurs in the:
Definition
small intestine
Term
The inner surface of the small intestine has mucosal folds, villi, and microvilli because:
Definition
these increase the surface area for absorption
Term
Sodium and other electrolytes are absorbed in the:
Definition
colon
Term
Intestinal gas is produced by:
Definition
the action of intestinal bacteria on undigested carbohydrate
Term
The best way for most people to relieve constipation is to:
Definition
eat more dietary fiber.
Term
A hormone that increases blood glucose level is:
Definition
glucagon
Term
When the nitrogen portion is split off from an amino acid, the residue is:
Definition
a keto acid
Term

Small potrusions from the surface of a membrane:

 

 

Definition
Villi
Term
Rounded mass of food formed in the mouth and ready to be swallowed:
Definition
Bolus
Term
Cistern or receptacle of the chyle; the site where fat enters the general circulation:
Definition
cisterna chyli
Term
Semifluid food mass in the gastrointestinal tract after gastric digestion:
Definition
Chime
Term
The production of glucose from keto acid carbon skeletons from the deaminated amino acids and the glycerol portion of fatty acids:
Definition
Gluconeogenesis
Term
Away from the point of origin:
Definition
Distal
Term
Gastric distress or indigestion involving nausea, pain, burning sensations, or excessive gas:
Definition
Dyspepsia
Term
The process of breaking down food to release its nutrients for absorption and transport to the cells for use in body functions:
Definition
Digestion
Term
Viscous fluid secreted by mucous membranes and glands, consisting mainly of mucin (a glycoprotein), inorganis salts, and water:
Definition
Mucus
Term
Hormone produced in the mucous membrane of the duodenum in response to the entrance of acid contents from the stomach into the duodenum:
Definition
secretin
Term
The outer surface layer of the intestines interfacing with the blood vessels of the portal system going to the liver:
Definition
Serosa
Term
Minute vascular structures potruding from the surface of the villi covering the inner surface of the small intestine, forming a "brush border" that facilitates absorption of nutrients:
Definition
Microvilli
Term
Sticky:
Definition
Viscous
Term
Removal of an amino group (NH2) from an amino acid:
Definition
Deamination
Term
A duodenal peptide hormone that inhibits gastric hydrochloric acid secretion and motility:
Definition

Enterogastrone

Term
State of relative dynamic equilibrium within the body's internal environment:
Definition
Homeostasis
Term
Hormone secreted by mucosal cells in the antrum of the stomach that stimulates the parietal cells to produce hydrochloric acid:
Definition
Gastrin
Term
Specific term for conversion of glycogen into glucose in the liver:
Definition
Glycogenolysis
Term
Network of nerves in the walls of the intestine that make up the intramural nervous system, controlling muscle action and secretions for digestion and absorption:
Definition
Intramural nerve plexus
Term
A reddish bile pigment resulting from the degradation of heme by reticuloendothelial cells in the liver:
Definition
Biliruben
Term
A wavelike progression of alternate contraction and relaxation of the muscle fibers of the gastrointestinal tract:
Definition
Peristalsis
Term
A peptide hormone secreted by the mucosa of the duedenum in response to the presence of fat:
Definition
Cholecystokinin
Term
Amino acid residue after deamination:
Definition
Ketoacid
Term
Red, swollen, bleeding, gums, most often caused by accumulation of bacterial plaque of the teeth:
Definition

Gingivitis

Term
Difficult or infrequent passage of hard dry stools:
Definition
Constipation
Term
Lower section of the stomach:
Definition
Antrum
Term
Transport of nutrients from the lumen of the intestine across the intestinal wall into the blood (carbohydrates and proteins) or the lymph (fats):
Definition
Absorption
Term
The first section of the small intestine entered by food passing through the pyloric valve from the stomach:
Definition
Duodenum
Term
The mucous membrane constituting the inner surface layer of the gastrointestinal tract, providing extensive nutrient absorption and transport functions:
Definition
Mucosa
Term
The large intestine extending from the cecum to the rectum:
Definition
Colon
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