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Organ Histo Final > Salivary Glands-Esophagus > Flashcards

Salivary Glands-Esophagus Flashcards

1
Q

What is the largest salivary gland

A

Parotid, produces 30% of total salivary output

100% serous producing

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2
Q

What is most affected by mumps

A

Parotid glands, facial nerve passes through it

As one ages this glands becomes infiltrated with adipose

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3
Q

What products does the parotid gland produce

A
  1. Salivary amylase (alpha amylase)
  2. Lysosomes
  3. Secretory IgA
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4
Q

Which salivary gland produces a mixed product but is primarily serous producing

A

Submandibular

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5
Q

Which salivary gland produces a mixed product but is primarily mucus producing

A

Sublingual

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6
Q

What does the submandibular gland do

A

Produces 60% of salivary output

Fatty infiltration possible midlife

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7
Q

What gland has serous Demilunes

A

Submandibular

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8
Q

What is the smallest salivary gland

A

Sublingual

Only produces 5% of salivary output

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9
Q

What mixed gland is mainly mucus producing

A

Sublingual gland

80% mucus producing

All products come from demilunes

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10
Q

What will sympathetic and parasympathetic impulse do to saliva

A

Parasympathetic- increase amount of watery secretion

Sympathetic- decrease amount of saliva, with thicker consistency
Result- dryer oral cavity

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11
Q

What is the mucosa like for lingual glands

A
  1. Surface epithelium
  2. Lamina propia
  3. muscularis mucosa- smooth muscle

Smaller blood vessels

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12
Q

What is the Submucosa like in lingual glands

A

More dense CT

Larger blood vessels

Submucosa like (Meissner) plexus: function to influence mucosa

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13
Q

What is the muscularis externa like in lingual glands

A

Myenteric (Auerbach) plexus

Typically smooth muscle

Typical fiber orientation= inner circular, outer longitudinal

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14
Q

Where is the myenteric plexus found

A

Between circular and longitudinal muscle layers

Function- to influence muscularis externa

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15
Q

Serosa or adventitia of lingual glands is

A

Can be serous producing, can be connective tissues in vertical organs

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16
Q

What is the surface epithelium of the esophagus

A

Stratified squamous

17
Q

What part of the esophagus contain Langerhans cells

A

Mucosa, an APC with some phagocytosis possible

18
Q

The lamina propia of the esophagus can have

A

Esophageal cardiac glands

19
Q

What are the functions of esophageal cardiac glands

A

Produce neutral mucus to protect esophageal epithelium

20
Q

Where is the lamina propia located in the esophagus

A
  1. First inch

2. Near stomach- last inch

21
Q

The Muscularis mucosa of the esophagus is a layer of longitudinal muscle which is different where

A

Thinner distally by pharynx and thicker proximally by stomach

22
Q

What is the esophageal Submucosa made of

A

Dense fibroelastic CT

23
Q

What part of the esophagus contains esophageal glands

A

Submucosa, glands are scattered along the length

24
Q

What is the function of esophageal glands of the Submucosa of the esophagus

A

Produce slightly acidic mucus to lubricate the movement of food

25
Q

What is the surface epithelium of the stomach

A

Simple columnar

26
Q

What type of muscle is found in the ME middle 1/3 of the esophagus

A

Mixture of skeletal and smooth muscle

27
Q

Esophageal proper glands are found in which layer

A

Submucosa

28
Q

What supplies the descending colon and rectum

A

Sacral nerves

29
Q

Is the Muscularis externa normal in the esophagus?

A

Yes inner circular and outer longitudinal

30
Q

The ME of the esophagus is broken up into

A

Upper 1/3- all skeletal muscle

MIddle 1/3- mixture of smooth and skeletal

Lower 1/3- all smooth muscle

TQ

31
Q

What runs the almost full length of the esophagus

A

Adventitia, except the last 1-2 inches where serosa is after the diaphragm

32
Q

Where is the pharyngoesophageal sphincter

A

Between oropharynx and esophagus

33
Q

Where is the gastroesophageal sphincter

A

Between esophagus and stomach- prone to problems, abrupt change

Aka lower esophageal sphincter

34
Q

What are the four complimentary forces that control the lower esophageal sphincter

A
  1. Diaphragm contraction
  2. Greater intra-abdominal pressure than intra-gastric pressure being exerted upon the abdominal part of esophagus
  3. Peristalsis
  4. Maintenance of correct anatomical arrangements of structures

Organ Histo Final (6 decks)

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