QUIZ 8 Flashcards
The tongue is NOT part of the
alimentary canal.
The spleen is NOT an accessory organ of
digestion.
Saliva is largely secreted by the
parotid, sublingual and submandibular glands; rich in amylase comesprimarily from the parotid and submandibular glands; helps moisten food so that it can be swallowed; and contains primarily water.
The stomach does NOT function as the
primary absorption site for most nutrients.
Gastric juice does not digest the stomach because the stomach is protected by an
alkaline mucous membrane
The layers of the GI tract in correct order from superficial to deep are the
serosa, the
muscularis, the
submucusosa and the
mucosa.
The Salivary enzyme amylase functions to digest
carbohydrates.
Protein digestion begins in the
stomach.
The folds of the gastric mucosa are called
Rugae.
Intrinsic factor secreted by the parietal cells of the stomach is required for absorption of
vitamin B12.
The ______ opens to permit passage of chyme into the duodenum; prevents backflow of food into the stomach; and Is a thicken ring of muscle through which the stomach communicates with the duodenum
The pyloric (sphincter) valve
The stomach absorbs
alcohol, aspirin, and water.
Gastrin functions to release more gastric juice, increase
gastric motility, and relax pyloric sphincter.
No digestion takes place in the
esophagus.
The digestive system includes a tube that extends from the mouth to the anus.
The digestive system includes organs that food does not actually enter. The digestive system shares some structures with the respiratory system.
Pancreatic juice includes
amylase, bicarbonate, trypsinogen, and ribonuclease.
The gallbladder
concentrates and stores bile.
The small intestine is the major site of digestion and absorption;.
consists of the duodenum, jejunum and ileum; has villi and microvilli that increase its surface area for absorption; and contains circular folds that increase surface area and absorption
The exit of the stomach is
the pylorus.
Adrenaline will
relax the muscles of the stomach and intestines and decrease the flow of blood to these organs.
The large intestine absorbs mostly
water.
Digested fatty acids enter the
blood stream from the Lymphatic system.
During digestion, proteins are
broken down into amino acids.
This intestinal enzyme Lipase is needed
to digest fat.
The external anal sphincter is
voluntarily controlled.
The pancreas functions as both an
exocrine & endocrine gland.
The common bile duct opens into the
Duodenum
The liver processes
waste products, pathogens, and circulating hormones.
The common bile duct is formed by
the union of the common hepatic and cystic ducts.
The appendix is attached to
the cecum.
