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Organ Histology Final > Esophagus > Flashcards

Esophagus Flashcards

1
Q

What is the function of the esophagus?

A

Transfer bolus to stomach from oropharynx

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2
Q

What is the surface epithelium of the mucosa of the esophagus?

A

Stratified Squamous

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3
Q

The surface epithelium of the mucosa of the esophagus contains what type of cells?

A

Langerhans Cells

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4
Q

The lamina propria of the esophagus is composed of?

A

Loose Areolar CT

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5
Q

What is the function of the lamina propria of the esophagus?

A

Produce neutral mucus to protect esophageal epithelium

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6
Q

The muscularis mucosa of the esophagus is a discontinuous layer of what type of muscle?

A

Longitudinal

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7
Q

What layer of the esophagus is thinner distally and thicker proximally>

A

Muscularis Mucosa

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8
Q

The submucosa of the esophagus is made of what tissue?

A

Dense Fibroelastic CT

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9
Q

The submucosa contains what that are scattered along the length?

A

Esophageal Glands (proper)

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10
Q

What produces slightly acidic mucus to lubricate the movement of food?

A

Submucosa of Esophagus

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11
Q

What is the pattern for the muscularis externa of the esophagus?

A

Normal Pattern

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12
Q

The upper 1/3 of the ME of the esophagus is made of all?

A

Skeletal Muscle

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13
Q

The middle 1/3 of the ME of the esophagus is made of?

A

Mixed Smooth and Skeletal Muscle

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14
Q

The lower 1/3 of the ME of the esophagus is made of all?

A

Smooth Muscle

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15
Q

The esophagus primarily has serous or adventitia?

A

Adventitia

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16
Q

What are the 2 physiological sphincters found in the esophagus?

A

Pharyngoesophageal Sphincter

Gastroesophageal Sphincter

17
Q

The pharyngoesophageal sphincter is between?

A

Oropharynx and Esophagus

18
Q

The gastroesophageal sphincter is between?

A

Esophagus and Stomach

19
Q

What are the characteristics for physiological sphincters?

A

No thickening of circular muscle in ME

Pressure gradient aids movement

Organ Histology Final (11 decks)

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