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Q 1/50
Score 0
What is the function of the digestive system?
30
Make nutrients available to cells by bringing nutrients to the internal environment through mechanical and chemical digestion
None of the above
Moving food through the body
Taking food into the body
Q 2/50
Score 0
When does digestion begin?
30
After mastication
1 minute after ingestion
Immediately after the food enters the body (ingestion)
During absorption
50 questions
Q.
What is the function of the digestive system?
1
30 sec
Q.
When does digestion begin?
2
30 sec
Q.
What is the term for movement throughout the digestive system?
3
30 sec
Q.
What is it called when complex nutrients are broken down into simpler nutrients?
4
30 sec
Q.
What is it called when food is taken into the body
5
30 sec
Q.
What is mechanical digestion?
6
30 sec
Q.
What is mastication
7
30 sec
Q.
Which stage of deglutition involves the oropharynx to the esophagus?
8
30 sec
Q.
What stage of deglutition is it when the tongue presses the bolus against the palate and it is moved to the oropharynx?
9
30 sec
Q.
What stage of deglutition is it when when the smooth muscle moves the bolus to the stomach?
10
30 sec
Q.
What muscle movement occurs when the bolus expands the GI wall which causes a reflex contraction that moves the bolus forward causing the muscle to move in a wavelike ripple?
11
30 sec
Q.
What motion is it when one region if the GI tract moves forward-and-backward. This motion breaks the food into smaller pieces and mixes it with digestive juices and intestinal mucosa?
12
30 sec
Q.
What is the name of the mixture of gastric juices and food that is created while food is being stored in the stomach?
13
30 sec
Q.
Nutrients in the duodenum trigger the release of the hormone.....
14
30 sec
Q.
During nervous regulation The duodenal mucosa has receptors that sense acids. The receptors stimulate an..........?
15
30 sec
Q.
What hormone regulates peristalsis?
16
30 sec
Q.
What is it called when water breaks down a compound?
17
30 sec
Q.
What are proteins that act as catalysts to speed up chemical reactions?
18
30 sec
Q.
What enzymes hydrolyze polysaccharides to disaccharides?
19
30 sec
Q.
What is the process where at the surface of the brush border, disaccharides bind to enzymes called?
20
30 sec
Q.
What type of compounds are made of hundreds of amino acid chains that are folded/twisted?
21
30 sec
Q.
What are the enzymes that catalyze the hydrolysis of proteins which become intermediate compounds?
22
30 sec
Q.
What is found in bile?
23
30 sec
Q.
What is the name of the tiny spheres that are formed when lecithin mixes with water and lipids?
24
30 sec
Q.
Substances that are not digested are removed from the body as........?
25
30 sec
Q.
What process is it when exocrine glands release a substance that helps the digestive system?
26
30 sec
Q.
The enzyme pepsin is secreted as......?
27
30 sec
Q.
What secretes enzymes into gastric juice?
28
30 sec
Q.
What protects digestive mucosa as food moves through the alimentary canal is in digestive juices like saliva?
29
30 sec
Q.
In the pancreatic juices enzymes are secreted as inactive proteins called....?
30
30 sec
Q.
What is the name for all intestinal secretions?
31
30 sec
Q.
To control salivary secretion what receptors send the signal to the brain?
32
30 sec
Q.
What phase of the stimulation occurs when sight, smell, taste, or thought of food activates medulla oblongata. Then fibers of the vagus nerve control the production of gastrin, which stimulates secretion?
33
30 sec
Q.
What phase of the stimulation occurs when food goes to the duodenum that has carbs, fats and acid it creates a reflex that involves the hormone gastric inhibitory peptide and maybe others. Could also be caused by enterogastric reflex?
34
30 sec
Q.
What phase of stimulation occurs when food presence and stomach distention triggers parasympathetic nerve reflexes which increase secretion. Protein digestion products can trigger secretion as well?
35
30 sec
Q.
What hormone causes pancreas to increase secretions, oppose influence of gastrin on gastric parietal cells, and allow passage of bile by stimulating contraction of gallbladder?
36
30 sec
Q.
What is secreted constantly by liver and held in gallbladder. Secretin and CCK cause it to leave gallbladder?
37
30 sec
Q.
What is the passage of substances through the intestinal mucosa to the lymph or blood. Occurs mostly in the small intestine?
38
30 sec
Q.
What is the removal of materials that were not digested?
39
30 sec
Q.
What is expelling feces called?
40
30 sec
Q.
What is it called when the material in the lower colon and rectum move slower than they are supposed to. Extra water is absorbed into the fecal matter and it makes it harder?
41
30 sec
Q.
What is it called when there is increased motility in the small intestine which reduces the amount of water absorbed(the result is watery stool)?
42
30 sec
Q.
What is deglutition?
43
30 sec
Q.
What controls the involuntary contraction of the smooth muscle?
44
30 sec
Q.
Every 20 seconds chyme is sent from the stomach to the......?
45
30 sec
Q.
What is chemical digestion?
46
30 sec
Q.
Digestive enzymes are turned into inactive.......?
47
30 sec
Q.
What turns proenzymes into active enzymes?
48
30 sec
Q.
What enzyme(s) catalyze the end steps of carbohydrate digestion?
