Embryology and Anatomy Flashcards

1
Q

Digestive tract histology:

Plicae circulares

A

Jejunum and proximal ileum

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2
Q

What is SMA syndrome

A

transverse portion of duodenum (3rd part) gets trapped between SMA and aorta, causing SBO

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3
Q

Lymphatic drainage below pectinate line

A

superficial inguinal lymph nodes

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4
Q

Spinal level of aortic bifurcation

A

L4

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5
Q

Spinal level of celiac trunk

A

T12

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5
Q

Which hemorrhoids are painful: internal or external

A

external

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6
Q

Portal triad of hepatic artery, portal vein, and common bile duct are contained in what ligament

A

hepatoduodenal ligament

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7
Q

Falciform ligament contains what structure

A

ligamentum teres hepatis

(derivative of fetal umbilical vein)

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8
Q

3 components of mucosal layer

A

epithelium

lamina propria

muscularis mucosa

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8
Q

Femoral hernia more common in males or females

A

females

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10
Q

What structures does ventral pancreatic bud contribute to

A

uncinate process

main pancreatic duct

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10
Q

Digestive tract histology:

nonkeratinized stratified squamous epithelium

A

esophagus

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11
Q

Lymphatic drainage above pectinate line

A

internal iliac lymph nodes

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12
Q

Digestive tract histology:

Absence of villi

A

colon

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13
Q

Are most anal fissures anterior or posterior

A

posterior

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15
Q

4 main layers of the gut wall

A

MSMS

Mucosa

Submucosa

Muscularis externa

Serosa

16
Q

Parasympathetic innervation

Foregut:

Midgut:

Hindgut:

A

Foregut: Vagus

Midgut: Vagus

Hindgut: Pelvic

16
Q

Which liver zone is first affected by ingested toxins and viral hepatitis

A

Zone 1: periportal

18
Q

Digestive tract histology:

Brunner glands (bicarb secreting cells of submucosa)

A

Duodenum

19
Q

What liver zone is affected in yellow fever

A

Zone 2: intermediate zone

21
Q

Spinal level of IMA

A

L3

22
Q

What structures are retroperitoneal

Distinguish primarily vs secondarily

A

SAD PUCKER

Suprarenal (adrenal)

Aorta

Duodenum (2nd-4th part)

Pancreas (except tail)

Ureters

Colon (except transverse)

Kidneys

Esophagus

Rectum

23
Q

What liver zone is affected in alcoholic hepatitis and is the first zone to be affected in ischemia

A

Zone III: pericentral (centrilobular zone)

24
Q

Digestive tract histology:

Peyer patches

Also largest number of goblet cells in small bowel

A

Ileum

25
Q

What is lateral to medial order of femoral artery, nerve and vein

A

Nerve artery vein

26
Q

What liver zone contains cytochrome P450

A

Zone 3: pericentral vein (centrilobular) zone

27
Q

Cause of jejunal, ileal, colonic atresia

A

vascular accident (apple peel atresia)

28
Q

Spinal level of SMA

A

L1

29
Q

Cause of duodenal atresia

A

failure to recanalize (trisomy 21)