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Test 8
second pg of notes
37
Anatomy
11th Grade
05/02/2016

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Term
pharynx
Definition
throat
Term
thoracic cavity
Definition
chest
Term
swallowing
Definition
deglutition
Term
About how many times do you swallow each day?
Definition
2400
Term
flap of tissue, reinforced by cartilage that folds over the entrance to larynx during swallowing
Definition
epiglottis
Term
Where is the swallowing center?
Definition
medulla oblongata of brain
Term
glycoprotein required for absorption of vitamin B12 in small intestine (to avoid pernicious anemia)
Definition
intrinsic factor
Term
viscous, highly acidic mixture of ingested substances combined with glandular secretions of stomach
Definition
chyme
Term
What are the parts of the stomach?
Definition
cardia, fundus, body, pylorus
Term
What part of the stomach joins with the duodenum of small intestine?
Definition
pylorus
Term
What regulates release of chime into duodenum and prevents regurgitation back into stomach?
Definition
pyloric sphincter muscle
Term
What secretes mucus and gastrin?
Definition
glands in pylorus
Term
What is the digestive hormone that stimulates activity of gastric glands?
Definition
gastrin
Term
prominent folds I mucosa of stomach, these stretch as you eat
Definition
rugae
Term
How much can a full stomach hold?
Definition
1-1.5 liters of material
Term
What in the stomach secrete intrinsic factor and hydrochloric acid (HCl)?
Definition
parietal cells
Term
What is the pH of the contents of the stomach?
Definition
1.5-2.0 (very acidic)
Term
What in the stomach secrete pepsinogen?
Definition
chief cells
Term
What is a proenzyme that is converted to the active pepsin when it comes in contact with HCl and is the most important digestive enzyme?
Definition
pepsiogen
Term
What are common substances that may be absorbed from stomach into bloodstream?
Definition
glucose, water, alcohol, and aspirin
Term
What can the prolonged use of aspirin cause?
Definition
gastric bleeding
Term
What has a key role in digestion and absorption of nutrients and is where 90% of digestion occurs?
Definition
small intestine
Term
Where does almost all of the rest of digestion take place?
Definition
large intestine
Term
What is another name for the large intestine?
Definition
colon
Term
On average, how long is the small intestine?
Definition
14.8-24.6 feet long
Term
What are the parts of the small intestine?
Definition
duodenum, jejunum, and ileum
Term
What bears a series of traverse folds called plical which are permanent and do not disappear as rugae I stomach when the small intestine fills?
Definition
intestinal lining
Term
What lies posterior to the stomach laterally from duodenum and toward the spleen?
Definition
pancreas
Term
What are the digestive cells and make up 99% of associated organ?
Definition
pancreatic acinar cells
Term
What 1% of the pancreas secretes hormones, insulin, and glucagon?
Definition
islets of Langerhans
Term
What happens when chyme enters the duodenum?
Definition
it releases secretin
Term
What is secretin?
Definition
hormone that causes pancreas to secrete a water buffer with pH of 7.5-8.8
Term
What causes pancreas to produce and secrete pancreatic enzymes?
Definition
duodenal hormone cholecystokinin
Term
inadequate blood supply to a region
Definition
ischemia
Term
largest visceral organ (internal)
Definition
liver
Term
scientific term for liver
Definition
hepatic
Term
What are phagocytic with monocytes that engulf pathogens, cell debris, damaged blood cells, store iron, lipids, and heavy metals like tin and mercury that are absorbed by digestive tract?
Definition
Kuppfer cells in liver
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