The Stomach Flashcards

1
Q

three functions of the stomach

A

**storage of ingested food
**mechanical and chemical breakdown of food
**production of intrinsic factor for Vitamin B12 absorption in small intestine

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2
Q

food leaves stomach in semi-liquid form called

A

chyme

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3
Q

two types of stomach anatomy

A

monogastric
ruminant

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4
Q

simple, single stomach

A

monogastric

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5
Q

three species with monogastric stomach

A

dogs
cats
horses

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6
Q

species with ruminant stomachs

A

cows
goats
sheep
camelids

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7
Q

complex stomach consisting of 4 chambers

A

ruminant

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8
Q

the monogastric stomach is ____ shaped and is located just behind _____

A

C shaped
diaphragm

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9
Q

the luminal surface of the monogastric stomach can either be ______ or ______

A

glandular or nonglandular

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10
Q

four parts of the glandular portion of the stomach

A

cardia
fundus
body
pylorus

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11
Q

1

A

Fundus

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12
Q

2

A

Body

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13
Q

3

A

Pylorus

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14
Q

4

A

Cardia

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15
Q

part of the stomach where the esophagus enters

A

cardia (named because of close proximity to heart)

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16
Q

expanded, dome shaped, blind ended sac, adjacent to the cardia

17
Q

largest section of the stomach

18
Q

distal part of the stomach

19
Q

how is the equine stomach divided

A

proximal non glandular region
aboral (furthest from the mouth) glandular region

20
Q

what structure divides the two sections of the equine stomach

A

Margo plicatus

21
Q

transient folds in gastric mucosa

22
Q

the rugae allows the stomach to do what when its filled with food

23
Q

what does the rugae increase

A

surface area for absorption

24
Q
25
the openings of ducts that are lined by glandular cells
gastric pits
26
three types of glandular cells in gastric pits
mucous neck cells parietal cells chief cells
27
gastric pit cells that produce hydrochloric acid (HCl)
parietal cells
28
gastric pit cells that secrete a thinner mucous
mucus neck cells
29
gastric pit cells that secrete pepsinogen
chief cells
30
a proteolytic enzyme that is essential in the digestive process
pepsin
31
pepsin begins the chemical digestions of what
proteins
32
pepsin is activated where
in the fundus
33
pepsinogen is converted to pepsin in the presence of what
hydrochloric acid (HCl)
34
last glandular portion of the stomach
pyloric gland region
35
three regions of the pyloric gland region
pyloric antrum pyloric canal pylorus
36
the pylorus opens into duodenum through what
pyloric sphincter
37
two cells found in the pyloric region
mucous-secreting cells gastrin secreting cells (G cells)