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Cell Biology > Liver Gallbladder Pancreas > Flashcards

Liver Gallbladder Pancreas Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What do alpha cells of islets of langerhands secrete? Beta? Delta?

A

Alpha
Insulin
Somatostatin

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2
Q

Where are zymogen granules located?

A

Apex of serous acini

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3
Q

Where do centroacinar cells open to?

A

Intercalated duct

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4
Q

Does the pancreas have striated ducts?

A

No

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5
Q

What do intercalated ducts connect to?

A

Intralobular ducts

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6
Q

WHat is the most common endocrine disorder in the dog?

A

Diabetes

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7
Q

What happens during acute pancreatitis?

A

Digestive enzymes are released in to local tissue

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8
Q

What endocrine does the liver secrete?

A

Angiotensinogen

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9
Q

What exocrine does the liver secrete?

A

BIle

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10
Q

Main function of liver

A

Fat, carb, protein metabolism
Storage
Secretion

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11
Q

Why are there many mitochondria in hepatocytes (and much SER)

A

Detoxification

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12
Q

Where are kupffer cells found?

A

sinusoids

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13
Q

What make the trabeculae of liver?

A

Hepatocytes

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14
Q

Is blood flow continuous or opposite to bile and lymph flow?

A

Opposite

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15
Q

Describe the flow of blood through venous system & liver

A 
Portal vein
Sinusoids
Central veins
Hepatic vein
caudal vena cava
right atrium
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16
Q

What is the space of disse?

A

space between hepatocytes where lymph can flow while blood runs opposite direction through central vein

17
Q

What communicates bile between hepatocytes?

A

Bile canaliculi

18
Q

WHat is the purpose of Ito cells?

A

Store fat and vitamin A

19
Q

What is the acinus of rappaport?

A

connection between two hepatocytes creates “backbone”

20
Q

What are the zones based on the acinus of rappaport?

A

Zone 1: best nutritional supply
Zone 2: intermeidae oxygen supply
Zone 3: hepaocytes have poorest supply and more susceptible

21
Q

Where is the majority of fetal hemopoiesis?

A

liver

22
Q

What is the purpose of the gallbladder?

A

Stores bile

23
Q

WHat species do not have a gallbladder?

A

horse
deer
rat

24
Q

What is the epithelium of the gallbladder?

A

simple columnar epithelium

25
Q

What is the sphincter of oddi?

A

releases bile to major duondenal papilla

26
Q

What stimulates release of bile?

A

CCK

27
Q

What hormones are needed for exocrine function of pancreas?

A

Chymotrypsinogen
lipase
amylase

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