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Yr 2 Anatomy > GI Week 3 Workbook > Flashcards

GI Week 3 Workbook Flashcards

1
Q

overview of histological layers in GI

A

1.Mucosa
2.submucosa
3.muscularis externa
4. Serosa (or adventitia)

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2
Q

subdivisions of mucosa

A

a. Epithelium
b. Lamina propria- connective tissue
c. Muscularis mucosae (interna)

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3
Q

subdivisions of muscularis externa

A

a. Circular muscle
b. Longitudinal muscle

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4
Q

4 junctions in GI

A
  1. Gastro -oesophageal junction
  2. gastro-duodenal junction
  3. ileo-cecal junction
  4. Recto - anal junction
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5
Q

1.where is protective mucosa found
2.what does it look like
3.epithelium type

A
  1. oesophagus
    2.closely packed straight glands with goblet cells
    3.stratified squamous non keritinisng
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6
Q

1.where is secretory mucosa found
2.what does it look like
3.epithelium type

A
  1. stomach
  2. tubular glands
  3. simple collumnar
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7
Q

1.where is absorptive mucosa found
2.what does it look like
3.epithelium type

A
  1. large and small intestine
  2. villi with short glands in small, closely packed in large
    3.Columnar epithelium
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8
Q

distribution of muscle type in oesophagus

A

top 1/3 = skeletal
middle = mixed
bottom 1/3 = smooth

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9
Q

What secretory cells are present in the stomach x3

A

chief- near bottom of gland
parietal- all of gland
surface mucous- top of pit

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10
Q

type of secretory cell in small intestine
and what they secrete

A

goblet
mucous

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11
Q

what are the crypts of Lieberkühn

A

Short tubular intestinal glands

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12
Q

what type of muscle is musuclaris mucosae

A

smooth

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13
Q

Where, in the gut tube, do glands extend down beyond the muscularis mucosae (interna) into the submucosa?

A

Oesophagus and duodenum

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14
Q

how to tell the difference between 1st and second part of duodenum

A

if brunners glands are in submucosa i.e after muscularis mucosa = 1st part

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15
Q

distinguishing features of jejunum

A

villi but no peyers patches or brunners glands

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16
Q

distinguishing feature of ileum

A

blue/purple payers patches

17
Q

function of payers patch

A

immune surveillance

18
Q

What is the predominant cell present in the surface epithelium of large intestine

A

goblet cells

19
Q

structure of muscularis externa in large intestine

A

longitudinal thinner than circular
and is not continuous

20
Q

appendix distinguishing features

A

the mucosa has no villi and fewer goblet cells compared to the colon
It has a ring of lymph follicles in the lamina propria.

21
Q

Main histological features of the Pancreas

A
  • Islets of Langerhans composed of clumps of small poorly stained cells
  • Pure serous acini composed of large strongly stained cells
22
Q

The spleen is covered by ……..

A

dense fibromuscular capsule formed of collagen and elastic fibres
with scattered smooth muscle.

23
Q

where is this from
how can it be identified
epithelium type

A

oesophagus

Closely packed straight glands
with goblet cells- purple

stratified squamous non keratinising

24
Q

where is this from
how can it be identified
epithelium type

A

stomach

tubular glands

simple columnar epithelium

25
Q

where is this from
how can it be identified
epithelium type

A

small intestine

villi with short glands

simple columnar

26
Q

where is this from
how can it be identified
epithelium type

A

large intestine

closely packed villi

Stratified squamous non-keratinised

27
Q

whats this from

A

oesophagus

28
Q

whats this from

A

stomach

29
Q

whats this from

A

small intestine

30
Q

whats this from

A

duodenum

31
Q

whats this from- be specific

how can it be identified

A

small intestine- JEJUNUM

villi but no peyers patches or brunner glands

32
Q

whats this from- be specific

how can it be identified

A

small intestine- ILEUM

lots of peyers patches- blue

33
Q

whats this from

what are the gland things

A

colon

goblet cells- mucous secreting

34
Q

whats this from

how can it be identified

A

appendix

no villi
fewer goblet cells
ring of lymph in the lamina propria.

35
Q

whats this

how can you tell

what are the 2 types of epithelium in it

A

anorectal junction

epithelium changes halfway through

right side: simple columnar
left side: stratified squamous epithelium

36
Q

whats this from

whats the hexagon shaped thing

whats the V

whats the T
and what does it contain

A

liver

hepatic lobule

central vein

portal triad
hepatic artery, a branch of the portal vein, and a bile duct.

37
Q

what is this from

what is the red thing

A

pancreas

islet of langerhaun

38
Q

whats this

how can you tell

A

spleen

very purple

39
Q

name A

A

A = Crypts of Leiberkuhn

Yr 2 Anatomy (26 decks)

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