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Anatomy 1 > Alimentary Controls > Flashcards

Alimentary Controls Flashcards

1
Q

What hormones are found in the GI Tract

A

Cholecystokinin (CCK)
Gastric
Gastric inhibitory peptide (GIP)
Secretin

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2
Q

What is gustation

A

Taste

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3
Q

What is olfaction

A

Smell

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4
Q

What cranial nerves affect gustation

A

CN 7 and 9

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5
Q

What cranial nerves affect olfaction

A

CN 1

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6
Q

Describe properties of chewing

A

Uses jaw, facial and tongue muscles
Skeletal in type controlled by somatic nerves
Voluntary control via CN 5,7 and 12

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7
Q

Describe properties of swallowing

A

Uses jaw, tongue and pharyngeal muscles
Controlled by somatic nerves
Automatic control via CN 5,9,10 and 12

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8
Q

What does the stomach secrete

A

Gastric juice

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9
Q

What occurs in the cephalon phase of gastric stimuli

A

Mechanical - chewing
Chemical - taste and smell
Psychic - visual and emotional

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10
Q

What occurs in the gastric phase of gastric stimuli

A

Mechanical - distension

Chemical - food in stomach

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11
Q

What occurs in the intestinal phase of gastric stimuli

A

Mechanical - distension

Chemical - acid, protein in duodenum

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12
Q

What occurs in the cephalic phase of gastric activity

A

Nerves - long and short reflexes
Hormones - GIP, secretin
Tends to slow gastric emptying

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13
Q

What is secreted by the small intestine

A

Intestinal juice

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14
Q

How is the small intestine controlled

A

Mainly by local nerves (short reflexes) in response to intra-luminal stimuli

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15
Q

What is pancreatic juice rich in

A

Bicarbonate

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16
Q

What controls the cephalic phase of bicarbonate

A

CN10, vagus nerve

17
Q

What controls the intestinal phase of bicarbonate

A

Secretin, CCK and VIP

18
Q

What is secretin

A

Hormone released from the duodenum in response to acid. Stimulates secretion from bicarbonate-rich pancreatic juice

19
Q

What is Cholecystokinin (CCK)

A

Facilitates digestion in the small intestine

20
Q

What is the function of GIP

A

Causes an increase in insulin

21
Q

What is the function of VIP

A

Regulates blood flow, smooth muscle activity and secretion

Anatomy 1 (23 decks)

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