Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Organology Exam 2 > Digestive System II > Flashcards

Digestive System II Flashcards

1
Q

Salivary glands

A
  • open into oral cavity

- receive both sympathetic (thick saliva) and parasympathetic (watery saliva) innervation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Minor salivary gland

A
  • scattered in submucosa of oral cavity

- named for location (lingual, buccal, labial, pharyngeal, palatine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Major salivary gland

A
  • compound gland
  • encapsulated with thin septa between lobules
  • typically tubuloacinar organization
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What type of secretion does the parotid salivary gland have?

A

predominately serous secretion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What glands have mixed serous and mucous secretion?

A

mandibular
sublingual
zygomatic
molar (buccal)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What do serous cells form?

A

acini or demilunes, which cap mucous acini

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What do mucous cells form?

A

acini or tubuloacinar units

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What surrounds both acini and intercalated ducts?

A

myoepithelial cell processes

contraction of cell processes helps move secretions along the duct system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Duct system of salivary glands is branched or unbranched?

A

branched

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What 2 types of interlobular secretory ducts secrete H2O and electrolytes?

A

intercalated ducts

striated ducts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Intercalated ducts

A
  • very short and inconspicuous

- arise directly from the acini

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Striated ducts

A
  • continuous with the intercalated ducts

- striations are a result of basal mitochondria aligned between membrane infoldings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name the 2 ducts of the excretory duct system

A

interlobular duct

main duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where do main ducts open to?

A

oral cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Name the 6 functions of the salivary glands

A
  1. protection of the oral cavity and teeth
  2. production of lubricant for dry ingesta
  3. provide fluid for rumen and pH adjustment
  4. source of IgA from adjacent plasma cells and perhaps hormones
  5. production of digestive enzymes
  6. regulation of electrolyte balance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Name the 3 types of salivary glands (i.e. what do they secrete?)

A

mucous
serous
mixed

17
Q

4 functions of the GI tract

A
  1. movement of ingesta through the tube
  2. digestion (mechanical and chemical)
  3. absorption of simple nutrients
  4. secretion of enzymes, hormones, and mucin
18
Q

Name the 7 layers of the GI tract, from lumen to outside

A
  1. lamina propria
  2. muscularis mucosae
  3. tunica mucosa
  4. tunica submucosa
  5. tunica muscularis (inner)
  6. tunica muscularis (outer)
  7. tunica serosa
19
Q

How many muscularis mucosae layers can there be in the GI tract?

A

0-3 layers

20
Q

Where are mucosal glands found in the GI tract?

A

from glandular stomach through rectum

21
Q

Submucosal nerve plexus

A

a bundle of nerves in the tunica submucosa that contains sympathetic and parasympathetic fibers

22
Q

What are the 2 layers of the tunic muscular is?

A

inner circular muscle layer

outer longitudinal muscle layer

23
Q

What does the inner circular muscle layer of the tunica muscularis form?

A

sphincters

24
Q

What does the outer longitudinal muscle layer of the tunica muscularis form?

A

longitudinal bands (tenia)

25
Q

Esophagus

A

highly distensible organ due to longitudinal folds and elastic fibers

26
Q

Striated muscle in esophagus

A
  • found along entire length of esophagus in dog and ruminant

- found cranially only in cat, pig, and horse

27
Q

3 functions of the simple glandular stomach

A
  1. storage and mixing
  2. mechanical and chemical digestion
  3. secretion of mucous, enzymes, H20, electrolytes, and hormones
28
Q

3 gastric gland regions of the simple stomach

A
  1. cardiac gland region
  2. pyloric gland region
  3. fundic gland region
29
Q

Characteristics of the cardiac gland region

A
  • found near esophagus, may be small
  • contains mucous cells
  • pits and glands may be short and have wide lumen
30
Q

Characteristics of the pyloric gland region

A
  • near pyloris
  • contains mucous cells
  • deepest pits and short, coiled glands
  • thickest T. muscularis
31
Q

Characteristics of fundic gland region

A
  • body and fundus of stomach
  • largest region
  • greatest variety of cell types in glands
32
Q

Gastric glands

A

simple branched or coiled tubular, fill the lamina propria

33
Q

Where is the subglandular layer of the stomach?

A

between the lamina propria and the muscularis mucosae

34
Q

What 2 parts make up the subglandular layer?

A 
stratum granulosum (very cellular)
stratum compactum (packed collagen fibers)
35
Q

3 layers of the tunica muscularis in the stomach

A
  1. inner oblique
  2. middle circular (gives rise to sphincters)
  3. outer longitudinal layer

Organology Exam 2 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions