Pancreas, Liver & Gallbladder (German) Flashcards

1
Q

What is the difference between Exocrine and Endocrine

A

Exocrine: Secretes ONTO something

Endocrine: Secretes into the blood stream

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2
Q

Name the 3 Types of Exocrine Glands

A
  1. Merocrine
    1. Holocrine
      1. Apocrine
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3
Q

Give an example of a merocrine gland

A

Salivary gland, Pancreas (releases via exocytosis)

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4
Q

Sebaceous gland is an example of a….. gland

A

Holocrine Gland

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5
Q

What is the function of Apocrine glands

A

Secrete membrane enclosed cytoplasm containing proteins and lipids

example (mammary glands)

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6
Q

True or False

The pancreas is and exocrine organ

A

False: Exocrine AND Endocrine

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7
Q

What is a Zymogen

A

AN inactive enzyme precursor

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8
Q

These cells secrete glucagon and make of 30% of Islet cells

A

Alpha cells

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9
Q

What do Beta cells secrete?

A

Secrete insulin

65% of Islet cell

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10
Q

What do Gamma cells secrete

A

Secrete Somatostatin

  • Inhibits GI and pancreatic endocrine and exocrine secretion
  • 4% of islet cells
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11
Q

What do PP cells secrete?

A

Pancreatic polypeptide

1% of Islet cell

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12
Q

What are the 4 functions of the Liver

A
  1. Blood reservoir
  2. Bile secretion
  3. Detoxification
  4. Metabolic homeostasis
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13
Q

What are the 3 major cell types of the liver

A
  1. Hepatocyte (work horse of liver)
  2. Kuppfer cell
  3. Sinusoidal epithelial cell
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14
Q

These cells produce bile and metabolize carbs, prteins and lipids….

A

Hepatocyte - workhorse of liver

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15
Q

Which liver cell removes pathogens from blood

A

Kuppfer cell (Liver specific macrophage)

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16
Q

What defining charecteristic do sinusoidal epithelial cells have?

A

No basement membrand

Large pores between cells

17
Q

What is the main function of the Gall Bladder?

A

To store and secrete Bile

18
Q

What stimulates the release of bile?

A

CCK

19
Q

What does bile contain and where is it made?

A

Made by the liver

Contains: Bile salts, cholesterol, phospholipids, bilirubins & waste

20
Q

Which liver cell filters blood?

A

Kupffer cells filer the blood

21
Q

Name the 3 structures of the liver architecture classification

A
  1. Classic hepatic lobule (endocrine)
  2. Portal lobule (exocrine)
  3. Hepatic acinus (3 zones)
22
Q

Name the 3 zones and their functions of the Hepatic Acinus

A

I - periportal zone O2 & nutrient RICH

II - intermediate zone

III - peripheral zone: O2 POOR

23
Q

What are the phases of detoxification?

A

Phase I: drugs areconverted into morepolar compound (oxidized) Cytchrom p450 and microsomal oxidases

Phase II: Drugs conjugated to hydrophilic molecules
-Transerases