Wiley AA Ch. 24 Assignment

A fetal remnant of the umbilical vein called the ___________ teres is located on the free border of the falciform ligament.

ligamentum

Each of the following are enteroendocrine cells located in the intestinal glands EXCEPT S cells goblet cells CCK cells K cells

goblet cells

What happens to processed food that is unusable in the GI tract? goes to the liver for further processing goes to the small intestine for elimination goes back to the stomach for further processing goes to the large intestine for elimination goes to the appendix for further processing

goes to large intestine for elimination

Which vessel would have the lowest blood sugar level? hepatic portal vein hepatic vein hepatic artery

hepatic artery

Pancreatic juice enters the duodenum directly via the _______________. cystic duct hepatopancreatic ampulla pancreatic duct common bile duct

hepatopancreatic ampulla

In order for digestion occur, what must happen first? Ingestion Digestion Secretion Absorption

Ingestion

About _____________ of all absorption of nutrients occurs in the small intestine. 90% 50% 75% 20%

90%

Which of the following is involved in the process of swallowing? All of the choices are correct. the esophagus the pharynx secretion of saliva and mucus

All of the choices are correct.

The enzyme enterokinase stimulates the production of pancreatic juices stimulates contraction of the common bile duct activates enzymes in protein digestion stimulates the production of bicarbonate ions from the pancreas

activates enzymes in protein digestion

Microvilli contain a centrally located lacteal secrete hormones are extensions of the absorptive cells in the small intestine are hair-like cells for motility

are extensions of the absorptive cells in the small intestine

The excessive build-up and subsequent release of hydrogen, carbon dioxide, and methane gases, termed flatulence, is the result of the digestive action of ____________

bacteria

Which of the following are NOT found in the secretions of the GI tract and accessory digestive organs? buffers bacteria water acid

bacteria

Most of the vigorous mixing of gastric juices and food occurs in which area of the stomach? cardia body fundus pyloric

body

The three phases of digestion include duodenal, jejunal, and ileocecal cephalic, gastric, intestinal parotid, sublingual, submandibular buccal, pharyngeal, esophageal

cephalic, gastric, intestinal

Which digestive hormone inhibits gastric emptying, promotes normal growth and maintenance of the pancreas, and enhances the effects of secretin? gastrin vasoactive intestinal polypeptide somatostatin cholecystokinin

cholecystokinin

Which hormone induces satiety (feeling full to satisfaction)? gastrin cholecystokinin vasoactive intestinal polypeptide secretin

cholecystokinin

Most ingested food must go through chemical digestion.Which of the following are absorbed without chemical digestion? proteins lipids carbohydrates cholesterol

cholesterol

Which of the following are mismatched? secretion: release of water and other substances into the lumen of the GI tract absorption: passage of digested material from the GI tract into the blood and lymph ingestion: eating defecation: elimination of feces digestion: moving, churning and propulsion of food through the GI tract

digestion: moving, churning, and propulsion of food through the GI tract

Which of the following enzymes from the pancreas are matched correctly to their substrate? phosphates-RNA elastase-proteins pepsin trypsin-triglycerides

elastase-proteins

All of the following organs may be involved in chemical digestion EXCEPT pancreas stomach salivary glands esophagus

esophagus

Pancreatic juice is secreted by the __________ portion of the pancreas.

exocrine

Intestinal glands are found within which layer of the small intestine? submucosal mucosal muscularis serosa

mucosal

All water absorption in the GI tract occurs via active transport facilitated diffusion osmosis diffusion

osmosis

Enzyme activity in the small intestine is not optimal on acidic chyme. Which organ is responsible for neutralizing the chyme? small intestine stomach pancreas liver

pancreas

The principal enzyme that digests triglyceride is produced in the liver salivary glands pancreas stomach

pancreas

Which of the following organs has the greatest effect on chemical digestion? mouth liver pancreas stomach

pancreas

A violent car accident that severed a patient's spinal cord at the L5 level resulted in flaccid paralysis of the defecation reflex. This injury must have included a disruption of the neurons involved in ____________ nervous output to the large intestine.

parasympathetic

When the stomach is distended it will activate neural regulation of digestion by stimulating the________ pathway. control sympathetic cephalic parasympathetic

parasympathetic

The middle portion of the small intestine is the Which activity allows for mixing the chyme with the digestive juices and allows the nutrients to come in contact with the mucosa for absorption? peristalsis segmentation migrating motility complexes bulk transport

segmentation