Digestive Glands Flashcards Preview

GI exam #1 > Digestive Glands > Flashcards

Flashcards in Digestive Glands Deck (19)
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1
Q

What are the major salivary glands?

A

submandibular, sublingual, and parotid

-branched tubuloalveolar glands

2
Q

Which gland produces most of the saliva?

A

sumbandibular

3
Q

Which gland produces amylase?

A

parotid

-saliva production under the control of the ANS

4
Q

What cells secrete IgA?

A

plasma cells

5
Q

Where are the intercalated ducts the longest?

A

in the parotid gland

6
Q

What are the striations in the striated ducts?

A

the vertically aligned mitochondria

-these ducts are involved with transport of water and ions

7
Q

Which gland has only serous acini?

A

Parotid

8
Q

Which gland has mostly mucus acini?

A

sublingual

9
Q

Which gland has both kinds of acini with serous demilunes?

A

submandibular

10
Q

What is statherin and where does it come from?

A

it is involve with bacterial clearance (tooth)

-secreted by the parotid gland

11
Q

Which gland is the primary target in mumps, rabies, and tumors?

A

parotid

12
Q

What is the endocrine component of the pancreas?

A

the islet of langerhans (~2% of volume)

13
Q

What is the main function of the endocrine pancreas?

A

regulation of glucose metabolism by hormones secreted into the bloodstream

14
Q

What is the functional unit of the exocrine pancreas?

A

the acinus

15
Q

What cells are in the acinus that are unique to the pancreas?

A

centroacinar cells

16
Q

What does the exocrine pancreas lack?

A

striated ducts and myoepithelial cells

17
Q

What do centroacinar cells secrete?

A

an aqueous bicarb solution under stimulation by the hormone SECRETIN…
-they also secrete mucin

18
Q

Which hormones increase the flow of the pancreatic fluid

A

CCK and secretin

19
Q

What is happening with acute pancreatitis?

A

premature activation of pancreatic enzymes and inactivation of trypsin inhibitor

  • leads to autodigestion of pancreatic acini
  • follows heavy meals or excessive alcohol intake
  • *rapid elevation of AMYLASE and LIPASE in serum