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Oral%20Cavity%20

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Oral Cavity & Esophagus Stomach Small & Large Intestines Phun wih pH Potpourri 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 – PowerPoint PPT presentation

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Title: Oral%20Cavity%20


1
Oral Cavity Esophagus
Stomach
Small Large Intestines
Phun wih pH
Potpourri
100
100
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200
200
200
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200
300
300
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2
Mechanical digestion in the mouth results in a
ball of food that can be swallowed. What is this
ball of food called?
3
A Bolus
4
What is the name for the rhythmic contractions or
muscle movements of the esophagus?
5
A. Peristalsis
6
Double Jeopardy
7
Why is it important that our mouth be wet or
moist in order to taste food?
8
Where is the epiglottis and what does it do?
9
A. Lower portion of the pharynx and it prevents
food from entering the wind pipe
10
What is the name of the enzyme that begins the
digestion of polysaccharides?
11
A. Salivary Amylase
12
What is the mixture called that is released from
the stomach into the duodenum?
13
A. Chyme
14
What is the name of the structure that prevents
the acid in your stomach from coming up your
esophagus?
15
A. Cardiac sphincter
16
Name the three secretory cells that line the
stomach
17
A. mucus, parietal, peptic / chief
18
An accumulation of what bacteria can cause
stomach ulcers?
19
A. Helicobacter pylori
20
What do peptic cells secrete, and what is the
fate of that protein?
21
A. Peptic cells secrete pepsinogen which is
activated by HCl to become pepsin
22
What is the name of the first 30cm of the small
intestine?
23
A. Duodenum
24
What are the enzymes called that digest fats?
25
A. Lipases
26
Which enzyme completes the final stage of protein
digestion?
27
A. Erepsin
28
What enzyme activate Trypsinogen?
29
A. Enterokinase
30
What role do bile salts play in digestion?
31
A. Emulsify fats to increase surface area
32
What is the average pH of the stomach?
33
A. pH of stomach is between 1 and 3
34
How is the acid from the stomach neutralized?
35
A. Bicarbonate ions from the pancreas
36
What would be the ideal pH for the enzymes pepsin
and trypsin?
37
A. Pepsin would be 2 and Trypsin would be 7
38
At what pH does catalase function best?
39
A. approx. 7
40
Bile helps counteract the pH of digested lipids.
Would the bile be an acid or a base?
41
A. Bile is slightly basic
42
Which muscle separates the thoracic cavity from
the abdominal cavity?
43
A. Diaphragm
44
Identify 3 enzymes that help to digest
carbohydrates?
45
A. Any three of amylase, maltase, sucrase, lactase
46
Name the microstructure that increases the
surface area in the small intestine
47
A. Villi
48
Why is the buildup of cellulose important in the
colon / large intestine?
49
A. Distends rectum, causing bowel movements
50
Identify unique features of skeletal muscle that
differentiate it from other muscle types
51
A. Many nuclei, striated, moves muscles
(observable)
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