Development of Foregut Flashcards

1
Q

Gut tube epithelium is derived from

A

Endoderm of yolk sac

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2
Q

Contents of umbilical cord

A
Allantois
Wharton's jelly
Left Umbilical vein 
Left and Right umbilical artery 
Vitellointestinal duct
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3
Q

Foregut extends upto

A

2nd part of duodenum - upto ampulla of vater

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4
Q

Foregut is supplied by which Artery

A

Celiac trunk

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5
Q

Foregut Sympathetic supply is by

A

Greater splanchnic nerve -T5 to T9

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6
Q

Midgut extends upto

A

from distal duodenum to 2/3rd of transverse colon

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7
Q

Midgut is supplied by which Artery

A

SMA - Superior mesenteric artery

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8
Q

Midgut Sympathetic supply is by

A

Lesser Splanchnic nerve - T10-T11

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9
Q

Foregut Parasympathetic supply is by

A

Vagus

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10
Q

Midgut Parasympathetic supply is by

A

Vagus

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11
Q

Hindgut - borders

A

1/3rd of transverse colon till anal canal

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12
Q

Hindgut Artery supply is

A

Inferior mesenteric Artery

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13
Q

Hindgut sympathetic supply is by

A

Least Splanchnic nerve - T12

Lumbar Splanchnic nerve - L1,L2

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14
Q

Hindgut Parasympathetic supply is by

A

Posterior Splanchnic nerve S2,3,4

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15
Q

Duodenum belongs to

A

Foregut and Midgut -

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16
Q

Duodenum is supplied by which artery

A

Celiac trunk and SMA

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17
Q

Dermatome Associated with Appendix

A

T10 - Midgut - Pain refers to Umbilicus - Level of L3-4

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18
Q

Only Splanchnic nerve to carry Parasympathetic supply

A

Posterior Splanchnic nerve - S2,3,4

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19
Q

Nervi Erigentes

A

Posterior Splanchnic nerve - S2,3,4

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20
Q

Foregut tube derivatives

A

Respiratory Diverticulum
Hepatic Bud
Ventral Pancreatic bud
Dorsal Pancreatic bud

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21
Q

Respiratory Diverticulum Derivatives

A

Proximal - Laryngotracheal Diverticulum

Distal - Bronchial and lung bud

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22
Q

Proximal Respiratory Diverticulum Derivatives

A

Laryngotracheal Diverticulum

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23
Q

Distal Respiratory Diverticulum Derivatives

A

Bronchial and lung bud

24
Q

Trachea and Esophagus Separated by

A

Tracheoesophageal Septum

25
Q

Esophageal atresia is due to

A

Posterior deviation of Tracheoesophageal Septum

26
Q

Esophageal atresia causes

A

Polyhydramnios

27
Q

Stomach axis of 1st rotation

A

vertical axis

28
Q

Stomach axis of 2nd rotation

A

AnteroPosterior axis

29
Q

Anterior vagal trunk

A

Left vagus on left border - superficial border

30
Q

Posterior vagal trunk

A

Right vagus on right border - deep plane

31
Q

Derivatives of ventral mesogastrium

A

Lesser omentum - hepatogastric and hepatoduodenal

Falciform Ligament - Coronary and Triangular Ligament

32
Q

Derivatives of greater mesogastrium

A

Greater omentum
Gastrosplenic Ligament
Lienorenal Ligament
Gastrophrenic Ligament

33
Q

muscularis externa hypertrophy in pyloric region causes

A

Pyloric stenosis

34
Q

Palpable mass at Right costal margin in a newborn

A

Hypertrophic pyloric stenosis

35
Q

Projectile nonbilious vomiting in a newborn

A

Hypertrophic pyloric stenosis

36
Q

Spleen projects into

A

Greater sac

37
Q

____ connects Greater and Lesser sac

A

Epiploic foramen

38
Q

Epiploic foramen connects

A

Greater and Lesser sac

39
Q

Lesser sac boundries

A

Above - Caudate lobe of liver
Below - 1st part of Duodenum
Anterior - free margin of lesser omentum
Posterior - IVC

40
Q

Hepatic bud - Derivatives

A

Liver parenchyma and Biliary system

41
Q

Biliary system derived from

A

Hepatic bud

42
Q

liver parenchyma derived from

A

Hepatic bud

43
Q

Location of dorsal and ventral pancreatic bud after Duodenum looping

A

dorsal above and ventral below

44
Q

Ventral bud of Pancreas forms

A

Head of pancreas and Uncinate process

45
Q

Uncinate process is derived from

A

Ventral bud of pancreas

46
Q

Main Pancreatic duct - derived from

A

Dorsal bud - distal part and ventral bud

47
Q

Main Pancreatic duct opens into

A

Major Duodenal papilla

48
Q

Accessory pancreatic duct - derived from

A

Proximal dorsal duct of pancreas - opens into Minor duodenal papilla

49
Q

Accessory pancreatic duct opens into

A

Minor Duodenal papilla

50
Q

Pancreatic Divisum

A

Non fusion of dorsal and ventral bud.
Dorsal duct into Minor DP
Ventral Duct into Major DP

51
Q

Annular pancreas

A

Ring around duodenum

Double Bubble sign on X Ray - due to discontinuous duodenum

52
Q

Non fusion of dorsal and ventral pancreatic bud causes

A

Pancreatic Divisum

53
Q

Mesoduodenum -

A

Disappears.

54
Q

Duodenum is ____peritoneal

A

Retro excpt Proximal Duodenum

55
Q

Proximal Duodenum is ____ peritoneal

A

Intraperitoneal

56
Q

Proximal Duodenum is covered by ____Ligament

A

Hepatoduodenal Ligament of lesser omentum