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Flashcards in Digestion 1 Deck (20):
1

serous membranes of the digestive system:

Line the abdominal organs:

visceral peritoneum

2

serous membranes of the digestive system:

Between the organs and abdominal wall:

mesenteries

3

serous membranes of the digestive system:

Line the abdominal wall:

parietal peritoneum

4

What are the 4 layers to a hollow organ:
Deepest -->[a], [b], [c], [d]

[a] Mucosa
[b] Sub-mucosa
[c] Muscularis Externa
[d] Serosa

5

Which of the following are the 2 major types of motion generated by smooth muscle tissue of the GI tract:

segmentation
peristalsis

6

The major enzyme made by the salivary glands is called salivary _______.

The major function of this enzyme is:

amylase

destruction of bacterial cell walls

7

Which of the salivary glands produces the most saliva?

submandubular

8

What type(s) of muscle line the esophagus?

skeletal
smooth

9

Based off of what you learned about the role of histamines in the stomach, predict what what will happen when a patient takes an anti-histamine:

Stomach acid production: [a]
Pepsin activity: [b]
Amount of time food would spend in the stomach: [c]

[a] lower
[b] lower
[c] higher

10

What is the dental formula, by type: (in one quadrant)

incisors: [a]
canines: [b]
premolars: [c]
molars: [d]

incisors: [a] 2
canines: [b] 1
premolars: [c] 2
molars: [d] 3

11

Order the phases of gastric activity, and whether gastric activity is increased or decreased:

1st phase
2nd phase
3rd phase
cephalic
increased
2nd
gastric
increased
3rd
intestinal
decreased

1st phase cephalic increased
2nd phase gastric increased
3rd phase intestinal decreased

12

The ____ sphincter regulates the movement of chyme into the duodenum.

pyloric

13

Identify the regions of the intestines, in order:

Stomach
Small intestines: [a], [b], [c]
Large intestines: [d], [e], [f], [g], [h]
Rectum

[a] duodenum
[b] jejunum
[c] ileum

14

Identify the regions of the intestines, in order:

Stomach
Small intestines: [a], [b], [c]
Large intestines: [d], [e], [f], [g], [h]
Rectum

[d] cecum
[e] ascending colon
[f] transverse colon
[g] descending colon
[h] sigmoid colon

15

Fat-laden chyme pass through the stomach slower or faster?

slower

16

What percentage of nutrient absorption happens in the small intestines?

90%

17

The brush border lies on the apical surface of intestinal epithelial cells, and is composed of these sub- cellular structures: [a]

microvilli

18

Those sub-cellular structures mainly function to increase [b].

surface area.

19

The epithelial cells are, in turn, arranged into finger-like projections called [c].

villi.

20

Inside each one of those are blood vessels plus a lymphatic vessel known as a [d].

lacteal.