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Microanatomy > 11. Digestive System 2 > Flashcards

11. Digestive System 2 Flashcards

1
Q

Describe nucleus of hepatocyte

A

Large, central, may be binucleated

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2
Q

this is where the pancreas empties its exocrine product.

A

duodenum

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3
Q

Main product of submaxillary glands?

A

Lysozyme

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4
Q

Epithelium lining canals of Hering?

A

Cuboidal

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5
Q

Biliary passages start with tiny __________ between hepatocytes

A

bile canaliculi

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6
Q

This vessel supplies blood to the liver that is rich with the products of digestion.

A

portal vein

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7
Q

Purpose of the infoldings in striated ducts that give them the appearance of striations?

A

Increases surface area

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8
Q

This vascular component of the liver is lined by cuboidal epithelium.

A

bile ductule

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9
Q

These ducts are the major ducts in the exocrine pancreas.

A

striated ducts

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10
Q

Where are striated ducts found?

A

ONLY in salivary glands (not in pancreas)

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11
Q

Type of duct surrounded by connective tissue

A

Interlobular duct

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12
Q

Pale-staining cells within a pancreatic acinus

A

Centroacinar cells

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13
Q

Portal triads are supported by this material

A

Connective tissue

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14
Q

Vascular channels in between hepatocytes

A

Sinusoids

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15
Q

3 unique surfaces of hepatocytes?

A
  • Sinusoidal
  • Canalicular
  • Intercellular
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16
Q

How are hepatocytes arranged in an adult liver?

A

In long plates

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17
Q

As canaliculi approach the periphery of each liver lobule, they are drained by small ducts known as ___________

A

canals of Hering

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18
Q

This is the name of the capsule of the liver

A

Glisson

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19
Q

This salivary gland is entirely serous and secretes enzymes like amylase and lysozyme

A

Parotid gland

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20
Q

This structural unit of the liver has three zones which define cells with different degrees of oxygenation.

A

acinus

21
Q

Epithelium of gall bladder?

A

Simple columnar with short microvilli

22
Q

Where is the Islet of Langerhans found?

A

ENDOCRINE pancreas

23
Q

Shape of hepatocytes?

A

Polygonal

24
Q

Secretory granules of serous cells are called?

A

Zymogen granules

25
Q

These cells form part of the liver endothelial lining

A

Kupffer cells

26
Q

This separates the the sinusoid from the hepatocytes.

A

Space of disse

27
Q

3 secretions from exocrine pancreas

A
  • Bicarbonate
  • Trypsin
  • Chymotrypsin
28
Q

The endothelium is separated from hepatocyte by ___________

A

space of disse

29
Q

What are the 2 nodules in the liver

A
  • Lobule

- Acinus

30
Q

This is the name of a circular collection of exocrine cells in the pancreas.

A

acinus

31
Q

The cytoplasm of mucous cells is filled with ___________ which dissolve with normal processing

A

mucigen granules

32
Q

The liver sinusoidal endothelium is separated from hepatocytes by __________

A

Space of Disse

33
Q

Liver acinus zone 1 is between these things

A

Portal triads

34
Q

The presence of a striated duct indicates what organ?

A

Salivary gland

35
Q

These are larger bile ducts.

A

Canals of Hering

36
Q

A cluster of secretory cells is referred to as a(n) __________

A

acinus

37
Q

Type of surface that makes up most of hepatocyte surfaces

A

Sinusoidal (~70%)

38
Q

4th possible component of portal triad (usually not seen)

A

Lymphatic

39
Q

Liver acinus zone 3 is closest to these things

A

Central veins

40
Q

What makes up a liver lobule?

A

6 portal triads around a central vein

41
Q

What is a demilune?

A

Crescent-shaped cluster of SEROUS cells on the outside of a mucous acinus

42
Q

The liver’s outer layer of mesothelial cells

A

visceral peritoneum

43
Q

Parenchyma of liver is supported by?

A

Reticulin fibers

44
Q

This salivary gland is mainly mucous

A

Sublingual glands

45
Q

This connective tissue fiber supports the sinusoids

A

Reticulin

46
Q

These are the smallest bile ducts

A

bile canaliculi

47
Q

These cells represent the first part of the ductal system in the exocrine pancreas.

A

centroacinar

48
Q

These cells are the exocrine cells of the pancreas.

A

acinar cells

49
Q

These macrophages are found in the liver.

A

Kupffer cells

Microanatomy (16 decks)

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