Cell Bio Final- Upper GI Flashcards

0
Q

Ectoderm gives rise to cells that are committed to forming

A

the enamel organ

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1
Q

Simple columnar epithelium extends the whole length of the GI tract except the esophagus and anal canal which have this type of tissue

A

Stratified, NON-keratinized squamous for protection and to reduce friction

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2
Q

Neural crest forms the dental papilla, which forms?

A

Dentin, Cementum, and Pulp

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3
Q

Specific organic components, other than collagen, such as Amelogenins and enamelins are unique to?

A

Enamel

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4
Q

The tongue has four types of papillae. which type tacks taste buds?

A

filiform papillae

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5
Q

taste buds contain?

A

sustentacular cells and taste cells

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6
Q

Taste cells release these molecules from their basal membranes?

A

Neurotransmitters

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7
Q

Serous glands whose ducts empty into the moats at the bases of circumvallate papillae are associated with?

A

Von Ebner’s Glands

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8
Q

What are the layers of the gut? (internal to external)

A

mucose, submucosa, external, muscle, serosa adventitia

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9
Q

the nerve plexus between the submucosa and circular muscle layer of muscularis externa

A

Meissner’s plexus (submucosal)

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10
Q

The nerve plexus located between the two layers of muscularis externa

A

Myenteric plexus of Auerbach

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11
Q

Gastric glands are long tubular glands extending down to which layer of the gut?

A

muscularis mucosae

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12
Q

gastric glands are composed of 5 different types of cells

A

mucous neck cells, parietal cells, chief cells, stem cells, and enteroendocrine cells

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13
Q

The parietal cell is eosinophilic in nature that produces HCl and gastric intrinsic factor. T/F?

A

so true!

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14
Q

intracellular canaliculi lined by microvilli are common in these cells?

A

Parietal

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15
Q

Pepsinogen is secreted by?

A

Chief cells