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HUBS192 > lecture 20 > Flashcards

lecture 20 Flashcards

1
Q

the GI system is specialised for what functions?

A

motility
secretion
digestion
absorption

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2
Q

epithelium in the mouth/oral cavity and esophagus?

A

stratified squamous for protection from abrasion

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3
Q

epithelium in stomach and large and small intestine?

A

simple columnar secretion and absorption

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4
Q

epithelium in anal canal?

A

stratified squamous for protection from abrasion

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5
Q

features of goblet cells?

A

columnar
goblet shape
apical mucous granules
basal nucleus

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6
Q

two types of glands?

A

simple

compound

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7
Q

what invaginates to form glands?

A

epithelium

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8
Q

four layers of the gut tube starting from most luminal?

A

mucosa
submucosa
muscularis
adventitia

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9
Q

mucosa consists of?

A

epithelium
lamina propria (FCT)
muscularis mucosa

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10
Q

what are the two layers of the muscularis?

A

inner circular

outer longitudinal

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11
Q

Where is the myenteric plexus and what does it regulate?

A

motility and inbetween two layers of muscularis

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12
Q

what is the additional layer when organs are in the peritoneal cavity?

A

serosa

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13
Q

what is retroperitoneal?

A

posterior to the peritoneum

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14
Q

what is the mesentery?

A

double layer of visceral peritoneum that connects organ to body wall

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15
Q

what is the omenta?

A

double layer of visceral peritoneum that connects an organ to another organ

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16
Q

what are the 3 salivary glands?

A

parotid
sublingual
submandibular

17
Q

what does the parotid gland secrete?

A

serous fluid with amylase

18
Q

what does sublingual gland secrete?

A

mucous

19
Q

what does the submandibular gland secrete?

A

a mix

20
Q

salivary glands are what kind of gland?

A

compound secretory glands

21
Q

what do acinar cells secrete?

A

enzymes

22
Q

what do duct cells secrete?

A

bicarbonate

23
Q

how long is the oesophagus?

A

~25cm

24
Q

where is the oesophagus?

A

posterior to trachea

25
Q

what is the oesophagus?

A

basic tube modified to pass food

26
Q

what mucosa is in the oesophagus?

A

stratified squamous

27
Q

what is the role of the muscularis externa in the oesophagus?

A

move down food bolus

28
Q

how does the oesophagus muscularis change as you move down?

A

skeletal muscle
smooth and skeletal
smooth muscle

29
Q

what is the purpose of mucous in the esophagus?

A

for lubrication and protection

30
Q

what secretes mucous in the oesophagus?

A

no goblet cells instead have glands with ducts to surface

HUBS192 (38 decks)

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