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Digestive Questions

The Language of Medicine 8th Edition Chapter 5-Questions

Digestion Begins and ends where? Begins @ the mouth & ends @ the anus
What are the (3) functions of the Digestive System? 1.)Digestion 2.)Absorbtion 3.)Elimination
The breaking down process is called what? Digestion
Transferring of nutrients into the bloodstream is called what? Absorption
The major portion of absorption takes place where? in the small intestine
The ridding of body waste is called what? Elimination
The mouth, tongue, & teeth are used for what? Biting, chewing, & swallowing
Another name for chewing is what? mastication
What is another name for swallowing deglutition
Name 3 pairs of glands that secrete saliva 1.)parotid glands 2.Submandibular Glands 3.sublingual glands
What is the pharynx or throat? A muscular tube approximately 5" long
What is the function of the pharynx or throat? passageway for food & air, divided into 3 sections
Where is the nasal pharynx located? Behind the nose
Where is the oropharynx located? Back of the mouth, beginning of the throat
Where is the laryngeal pharynx located? Front portion, leads to larynx
What is the esophagus? muscular tube leading from the pharynx to the stomach.
What is the function of the esophagus? To carry food into the stomach
Name the 3 sections that the stomach is divided into. 1.The fundus(upper) 2.The body(middle) 3.Antrum or pylorus
What is the stomach composed of? 3 layers of smooth muscle
The stomach has 2 valves that prevent what? Backflow
Where is the cardiac valve located? Between the esophagus & stomach
Where is the pyloric valve located? Between the stomach & the small intestine.
What are the (3) functions of the stomach? 1.Store food 2.Mixes w/gastric juices to form chyme 3.Stomach slowly empties into small intestine.
Food leaves stomach in approximately how many hours? 1-4
The small intestine is approximately how many feet in length? 20 ft
Where does the small intestine extend from? The pyloric valve to the large intestine.
The small intestine contains small glands that secrete what? enzymes
Give 3 examples of enzymes 1.sucrase 2.maltase 3.lactase
The small intestine is divided into 3 sections, name them. 1.duodenum 2.jejunum 3.ileum
What is the function of the duodenum? The duodenum receives enzymes from liver & GB
The jejunum is approximately how many feet in length? 8 ft
The ileum is approximately how many feet in length? 11 ft
The ileum attaches to what? large intestine
There are millions of these on the walls of intestines villi
What is the function of villi? They absorb nutrients into bloodstream & lymph vessels
Large intestine is attached to the small intestine by what of what valve? ileocecal valve
The large intestine is approximately how many feet long? 5 ft
The large intestine neither receives or secretes what? digestive enzymes
Name the (6) sections the large intestine is divided into. 1.cecum 2.ascending colon 3.transverse colon 4.descending colon 5.sigmoid colon 6.rectum
What is the peritoneum? Double layered membrane that supports & protects organs in the abdominal cavity
The visceral peritoneum is which layer? The Outer layer
Which layer is the parietal peritoneum? inner layer
Which layer of tghe peritoneum goes around the intestines? mesenteric
What is involuntary muscle contractions that forces contents along digestive tract? peristalsis
This organ is both endo & exocrine in function pancreas
What is the exocrine function of the pancreas? pancreatic enzymes, trypsin, amylase & pancreatic lipase
What are the endocrine functions of the pancreas? Secretes insulin & glucagon & both are for glucose & metabolism
Which is the largest organ in the body? Liver
The liver secretes bile by way of what? The cystic duct
Bile contains a pigment called what? Bili.
How is bili formed? By the breakdown of Hgb during normal RBC destruction
How does bili leave the body? Through feces
If bili cannot leave body ___ is caused. jaundice
What is the function of the GB? Stores bile & releases bile to duodenum for digestion
To digest protein they are broken down into what? amino acids
Carbs are broken down into what? simple sugars
Fats are broken down into what?q Simple fats
For absorption of vitamins they need to be mixed w/these 2 things Water & Simple Fats
Name water soluble vitamins B complex, Niacin, Vitamin C
These are fat soluble vitamins Vitamins A,D,E,K
Created by: Clearascrystal03