pancreas Flashcards

(14 cards)

1
Q

pancreas has both __ and ___ glands

A

endocrine and exocrine

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2
Q

which gland constitutes 95% of pancreatic mass

A

exocrine

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3
Q

exocrine glands have two cell types

A

acinar and cenroacinar

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4
Q

have characteristics of protein secreting cells and are filled with zygomen granules in the apical region

A

acinar

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5
Q

form the initial portion of the intercalated duct that penetrates the acinar lumen

A

cenroacinar

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6
Q

secrete several pancreatic enzymes which are first secreted as proenzymes and the activated in small intestine

A

acinar

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7
Q

secret large quantities of enzyme poor alkaline fluid, which neutralized acidic chyme
the enzyme secretion is controlled by?

A

cenroacinar

cholecystokinin - secreted by secretin

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8
Q

secretin and cholecystokinin are produced by

A

enteroendocrine cells of the digestive tract

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9
Q

striated ducts are absent in pancreas

A

true

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10
Q

the endocrine part of the pancreas includes

A

lightly stained cells called islets of Langerhans

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11
Q

islets of langerhnas contain 3 cell types

A

alpha, beta, delta

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12
Q

alpha cells (20%) produce

A

glucagon that elevates blood glucose

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13
Q

beta cells (70%)

A

produce insulin that decreases blood glucose

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14
Q

delta cells (5%)

A

produce somatostatin that regulates the secretion of alpha and beta cells

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