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Cell Biology > digestive system II > Flashcards

digestive system II Flashcards

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1
Q

What type of excretion do salivary glands use?

A

exocrine

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2
Q

What is the largest difference between major (parotid, mandibular, zygomatic, sublingual) and minor salivary glands (labial, lingual, buccal)?

A

Long excretory ducts vs short

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3
Q

Name the 6 features of the salivary gland

A 
Compound
Exocrine
Lobulated
Merocrine
Mixed
Secrete saliva
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4
Q

What are myoepithelial cells?

A

Contractile cells around glands inbasal lamina to expel secretion

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5
Q

Is saliva antibacterial?

A

Yes

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6
Q

What is the structural and functional unit of the gland?

A

Adenomere

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7
Q

Describe the flow of saliva?

A 
Adenomere
intercalated duct
striated duct
intralobular duct
interlobular duct
surface epithelium
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8
Q

Is parotid salivary gland mixed, serous, or mucus?

A

serous only

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9
Q

What two types of tissues look similar?

A

Parotid (mucus) and pancreas (islets of Langerhan’s)

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10
Q

Where are serous demilunes commonly seen?

A

Mandibular salivary gland

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11
Q

What is the smallest of the major glands? What is their main product?

A

Sublingual

Mucin

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12
Q

What are the 3 layers of Tunica Mucosa?

A

Epithelium
Lamina propria
muscularis mucosa

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13
Q

Where are glands located in the GI tract?

A

Submucosa

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14
Q

What are the 2 layers of the Tunica muscularis of the GI tract?

A

Inner circular layer

Outer longitudinal layer

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15
Q

Does espophagus have tunica adventitia or serosa?

A

Adventitia

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16
Q

Which animals have a stratified squamous keratinized esophagus?

A

Ruminants

17
Q

What 2 organs have submucosal glands?

A

Esophagus

Duodenum

18
Q

What is the non-glandular part of the stomach?

A

Esophageal region

19
Q

What are the glandular parts of the stomach?

A

Cardia
Fundus
Pylorus

20
Q

What is the margo plicatus?

A

transitional line from non-glandular to glandular stomach

21
Q

What are non-glandular stomachs of the cow?

A

Rumen
Reticulum
Omasum

22
Q

What is the epithelium for the ruminant forestomach?

A

stratified squamous keratinized

23
Q

Which part of the ruminant forestomach lacks muscularis mucosa in papillae?

A

Rumen

24
Q

Does the rume have a lamina propria?

A

Yes

25
Q

Where is smooth muscle located in the reticulum papillae?

A

Tip

26
Q

What are the layers in omasum formed by Tunica mucosa?

A

Laminae

27
Q

How can omasum be differentiated from rumen or reticulum?

A

Muscularis mucosa present throughout

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