BIO 4430- Midterm Exam Guide - Comprehensive Notes for the exam ( 15 pages long!)

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13 Oct 2017
School
Department
Course
Professor
WSU
BIO 4430
MIDTERM EXAM
STUDY GUIDE
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Acinar cell
description
Abundant rough endoplasmic reticulum in the basal region of the cytoplasm
A well-developed supranuclear Golgi apparatus
A cluster of secretory granules in the apical cytoplasm
Acinar cells are ____ in staining and are
____ products
basophilic
exocrine
Acinar cells are linked by ___
___
tight junctions (limits
diffusion)
Cells Composing the Islets of
Langerhans
(Endocrine cells)
beta (β) cells
alpha (α) cells,
delta (δ) cells,
PP (pancreatic polypeptide-producing) cells, G (gastrin-producing) cells.
Centroacinar cell
function
produce bicarb which help neutralize
secretions from the stomach
Centroacinar cells are an indication of
the beginning of a formation of a ____
duct
Cluster of acinar cells Synthesize and
secrete digestive enzymes into ducts
that empty into the _____
duodenum
Define Intercalated duct and what
organs are they found
The portion of an exocrine gland leading directly from the
acinus to a striated duct. The intercalated duct forms part of the
intralobular duct.
They are found in both the pancreas and in salivary glands.
The duct system of the pancreas begins within
the center of the ____ with the terminus of the ____
___, composed of pale, low cuboidal _____ _____
acinus
intercalated ducts
centroacinar cells
Duct that is Generally eosinophilic simple cuboidal
to columnar epithelia
Still not a lot of connective tissue surrounding
them
Interlobular duct
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Endocrine cells are found in the ____ ______
of the pancreas
islet of
langerhans
Eosinophilic granules surrounding
lumen in pancreas
zymogen granules
Exocrine cells are more ____ because
they have a lot more rough ER because
making a lot of protein
basophilic
Exocrine cells entering into ducts and
are picked up and by ____
lumen
Function
of:
Dnase
Enzyme
breaks down DNA
Function
of:
Lipase
Enzyme
Breaks down lipids and
fats
Function
of:
Proelastase
Proenzyme
breaks down elastic
fibers
Function of:
Prophospholipase
Proenzyme
Breaks down lipids
Function
of:
Rnase
Enzyme
breaks down
RNA
Function of:
Trypsinogen
Chymotrypsinogen
Procarboxypeptidase
Proenzyme that helps break down
protein of food
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