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Histo II > GI Histo II > Flashcards

GI Histo II Flashcards

1
Q

Mucosa in the large intestine has what kind of epithelium

A

Simple columnar with abundant goblet cells & lymphoid nodules

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2
Q

Does the mucosa of the large intestine have folds or villi

A

NO

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3
Q

Taenia coli instead of the outer longitudinal muscle layer is located here in the large intestine

A

Muscularis externa

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4
Q

Has epiploic appendices in the large intestine

A

Serosa/adventitia

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5
Q

What are the components of the large intestine

A

Ascending, transverse, descending, & sigmoid colon; upper anus & cecum

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6
Q

Narrow lumen with abundant lymphoid nodules in the submucosa that can infiltrate the lamina propria

A

Vermiform appendix (no taenia coli)

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7
Q

Mucosa of the anal canal is different upper vs lower by how

A

Upper - simple columnar epithelium

Lower - stratified squamous epithelium

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8
Q

Submucosa of the anal canal has large _____

A

Apocrine sweat glands & sebaceous glands

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9
Q

The muscularis externa of the anal canal is different upper vs lower by how

A

Upper - smooth muscles to from the internal anal sphincter

Lower - skeletal muscle from the puborectalis muscles that forms the external anal sphincter

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10
Q

Function: moisten & lubricate food for swallowing

A

Salivary gland

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11
Q

What are the three major salivary glands

A
  1. Submandibular
  2. Sublingual
  3. Parotid (largest)
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12
Q

How to tell the difference in slides of the salivary gland cells: serous vs mucous

A

Serous - dark & dense, organized as acinus or demilune

Mucous - wispy clouds, tubular organization

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13
Q

Short, cuboidal cells in the salivary glands

A

Intercalated ducts

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14
Q

Joining of several intercalated ducts; radial striations extend from base to nucleus within the cell (salivary gland cell)

A

Striated duct

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15
Q

Large diameter, large lumen, stratified cuboidal cells, outside of lobules (salivary gland cell)

A

Excretory duct

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16
Q

____ gland has all serous cells; secretes amylase, maltase, & sialomucin

A

Parotid

17
Q

____ gland has 20% mucous & 80% serous acini

A

Submandibular (sero-mucous)

18
Q

____ gland has mostly mucous cells in acini

A

Sublingual gland

19
Q

Largest gland with a thin capsule & a reticular CT network forming the storms that supports the vasculature penetrating the parenchyma

A

Liver

20
Q

Portal triads of the liver consist of

A
  1. Bile duct
  2. Hepatic artery - supplies oxygen rich blood to liver
  3. Hepatic portal vein - carries venous blood with nutrients from digestive viscera (large lumen/thin wall)
21
Q

Enlarged, leaky capillaries, Lind with endothelial cels located between hepatic plates in a radial orientation; mixed arterial & venous blood flow TOWARDS central vein

A

Liver sinusoids

22
Q

Separates the sinusoid endothelium from the hepatocytes; fluid flow towards lymphatic vessels OPPOSITE that of the blood flow (towards periphery)

A

Space of Disse

23
Q

Hepatic macrophages found in the liver sinusoid wall

A

Kupffer cells

24
Q

Found in the space of Disse, also store the retinyl esters of vitamin A

A

Ito cells

25
Q

Secreted bile flows between hepatocytes within the ______ towards the bile ducts in the portal triads

A

Bile canaliculi

26
Q

There are ___ interaction of bile with blood

A

NO

27
Q

Hexagonal shaped with central vein in the middle & portal triad at periphery (based on blood flow - mixed blood)

A

Classic lobule

28
Q

Based on bile flow - triangular shaped

A

Portal lobule

29
Q

Base on changes of O@, nutrients toxin content in the blood; diamond shaped

A

Hepatic acinus

30
Q

Serous, compound - acinus gland resembles parotid gland, except NO STRIATED DUCTS

A

Pancreas

31
Q

What are the two cell types of the pancreas

A
  1. Pancreatic acinar cell

2. Centroacinar cells

32
Q

Serous cells which are basophils; have have zymogen granules that contain: trypsinogen, chymotrypsinogen, carboxypeptidase, ribonuclease, DNAase, lipase, elastase, amylase

A

Pancreatic acinar cell

33
Q

Make bicarbonate rich fluid to neutralize acid in duodenum in response to secretin (how to determine pancreas)

A

Centroacinar cells

34
Q

The gallbladder has mucosa that is ________ with lamina propria

A

Simple columnar epithelium

35
Q

Function of the gallbladder (cholecyst) is to

A

Store & concentrate 30-50ml bile

36
Q

Bile salts are cholesterol derivatives that:

A
  1. Emulsify fat
  2. Facilitate fat & cholesterol absorption
  3. Help solubilize cholesterol

Histo II (8 decks)

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