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anatomy 2 > foregut development and mesenteries > Flashcards

foregut development and mesenteries Flashcards

1
Q

all organs drained by unpaired arteries drain to

A

the portal system

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2
Q

the foregut is supplied by

A

supplied by the coeliac artery

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3
Q

the foregut is located

A

oesophagus - 1/2 duodenum

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4
Q

the midgut is supplied by

A

superior mesenteric artery

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5
Q

the midgut is located

A

1/2 dudenum - 2/3 transverse colon

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6
Q

the hind gut is supplied by

A

the inferior mesenteric artery

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7
Q

the hind gut is located

A

2/3 transverse colon - anus

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8
Q

sympathetic ganglion of the foregut

A

coeliac ganglion

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9
Q

sympathetic ganglion of the midgut

A

superior mesenteric ganglion

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10
Q

vein draining the foregut

A

splenic and gastric veins

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11
Q

vein draining the midgut

A

superior mesenteric vein

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12
Q

sympathetic ganglion supplying the hindgut

A

inferior mesenteric ganglion

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13
Q

vein draining the hindgut

A

inferior mesenteric vein

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14
Q

organs in the foregut

A

stomach, liver, gallbladder, pancreas, spleen, first half of duodenum

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15
Q

organs of the midgut

A 
2nd half of duodenum 
jejunum and ileum 
cecum
ascending colon 
2/3 of transverse colon
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16
Q

organs of the hindgut

A

1/3 of transverse colon
descending colon
sigmoid colon
rectum

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17
Q

3 branches of the coeliac trunk

A

splenic artery
left gastric
common hepatic

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18
Q

3 branches of the superior mesenteric artery

A

ileocolic, right colic, middle colic

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19
Q

3 branches of the inferior mesenteric artery

A

left colic
sigmoid branches
superior rectal

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20
Q

ventral mesentery of the foregut

A

lesser omentum
falciform ligament
coronary/triangular ligaments

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21
Q

ventral mesentery of the mid and hind gut

A

none

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22
Q

dorsal mesentery of the foregut

A

gastroplenic ligament
splenorenal ligament
gastrocolic ligament
greater omentum

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23
Q

Dorsal mesentery of the midgut

A

mesointestine
mesoappendix
transverse mesocolon

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24
Q

dorsal mesentery of the hindgut

A

sigmoid mesocolon

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25
Q

motor nerve supply of the foregut and midgut

A

vagus

26
Q

motor nerve supply of the hindgut

A

pelvic splanchnic nerves

27
Q

what is a mesentery

A

peritoneal reflections
where 2 parts of peritoneum wrapping around an organ comon into contact with each other
a piece of tissue that suspends viscera, whilst holding important vessels

28
Q

gut tube is connected to the body wall by

A

dorsal mesentery

29
Q

the only section with ventral mesentery is

A

foregut

30
Q

visceral peritoneum

A

covers organs derived from splanchnopleure

31
Q

parietal peritoneum

A

covers body wall derived from somatopleure

32
Q

peritoneal cavity

A

fluid filled potential space

33
Q

intraperitoneal organs

A

have a mesentery
all derived from gut tube
all supplied by an unpaired aortic artery
drain into the portal system

34
Q

zygosis

A

combination of peritoneal linings (adhesions)

loss of mesentery

35
Q

intraperitoneal organs drain into

A

the portal system

36
Q

intraperitoneal organs are supplied by

A

paired aortic arteries

37
Q

itraperitoneal organs are derived from

A

the gut tube

38
Q

secondary retroperitoneal

A

had a mesentery but lost it
eg. pancreas
all derived from the gut tube

39
Q

secondary retroperitoneal organs are derived from

A

gut tube

40
Q

which organs went through zygosis

A

secondary retroperitoneal

41
Q

primary peritoneal organs

A 
never has a mesentery
not derived from the gut tube  
supplied by paired aortic artery 
drain into the caval system 
eg. kidneys
42
Q

primary retroperitoneal organs drain into

A

systemic veins - caval system

43
Q

primary retroperitoneal organs are supplied by

A

paired aortic arteries

44
Q

ventral mesogastrium

A

mesentery in front of the gastric/stomach

45
Q

coronary ligament

A

goes around the liver

46
Q

falciform ligament

A

on the liver on the anterior side

47
Q

lesser omentum also called

A

hepatogastric ligament

48
Q

coronary ligament

A

starts at the falciform and continues around to the lesser omentum

49
Q

what attaches the liver to the anterior body wall

A

falciform ligament

50
Q

what attaches the liver to the stomach

A

gastrohepatic ligament/lesser omentum

51
Q

what attaches the stomach to the spleen

A

gastrosplenic ligament

and greater omentum

52
Q

what attaches the spleen to the posterior body wall

A

splenorenal ligament

53
Q

ventral mesogastrium organs

A

liver, gall bladder, ventral pancreas

54
Q

dorsal mesogastrium organs

A

dorsal pancreas, spleen

55
Q

hepatic diverticulum composed of

A 
hepatic duct 
common bile duct 
gallbladder
hepaticopancreatic duct 
ventral pancreas
56
Q

why is the dorsal pancreas larger than the ventral pancreas

A

liver gene expression inhibits gall bladder and pancreatic growth in the same area usually

57
Q

why does the liver grow early

A

needed to produce blood for the embryo

58
Q

liver being shifted to the right

A

changes the orientation of everything else

59
Q

changes as a result of foregut rotation

A

stomach moves to the left
vessels form the ventral mesogastrium move posterior
bile duct is posterior to the duodenum

60
Q

accessory pancreatic duct

A

not usually seen

61
Q

main pancreatic duct

A

marks where the foregut ends and the midgut begins

62
Q

impairment in development of the liver

A

impacts how the gall bladder and cystic and hepatic ducts grow
ventral pancreas may go both ways around the duodenum to connect to the dorsal pancreas - narrows the duodenum

anatomy 2 (22 decks)

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