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Medical MicroAnatomy > Abdominal Embryology > Flashcards

Abdominal Embryology Flashcards

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USMLE® Step 1 flashcards
1
Q

Name & Color of Babies first Feces.

A

Meconium, dark green due to bile fluid.

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2
Q

Distal Esophagus, & Stomach, & Spleen belong to which embryological gut portion?

A

Foregut

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3
Q

Pancreas, Liver, & Gallbladder belong to which embryological gut portion?

A

Foregut

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4
Q

Which abdominal organ belongs to both Foregut & Midgut?

A

Duodenum

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5
Q

Appendix, & Ascending colon belong to which embryological gut portion?

A

Midgut

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6
Q

Descending Colon, Sigmoid Colon, & Rectum belong to which embryological gut portion?

A

Hindgut

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7
Q

Failure of retraction of the midgut in week 10 of development will most likely result in what condition?

A

Omphalocele

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8
Q

Failure of abdominal wall musculature fusion at Linea Alba will most likely result in what condition?

A

Gastrochisis

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9
Q

Which artery supplies the Hindgut?

A

Inferior Mesenteric Artery

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10
Q

Artery that supplies the Foregut…

A

Celiac Trunk Artery

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11
Q

Artery that supplies the Midgut…

A

Superior Mesenteric Artery

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12
Q

Vitelline Veins give rise to which structure within the Liver?

A

Hepatic Sinusoids

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13
Q

Splanchnic Mesoderm give rise to what hepatic structures/cells?

A

Connective tissue & Kupffer Cells

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14
Q

Gastrointestinal Endoderm give rise to…

A

The epithelial lining of the GI Tract

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15
Q 
The following gastrointestinal tract structures undergo developmental rotation except?
A) Stomach
B) Duodenum
C) Ventral pancreatic bud
D) Dorsal Pancreatic bud
E) Midgut
F) Hindgut
A

Hindgut

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16
Q

The first stomach rotation causes the ____ and ____ vagus nerves to become the ____ and ____ vagal trunks, respectively.

A) Left; Right; Superior; Inferior  
B) Right; Left; Lateral; Medial
C) Left; Right; Lateral; Medial
D) Right; Left; Anterior; Posterior 
E) Left; Right; Anterior; Posterior
A

Left; Right; Anterior; Posterior

17
Q

An infant has been projectile vomiting. Which of the following is the most likely diagnosis?

A

Pyloric stenosis

18
Q

Name the 3 ligaments derived from the Ventral Mesentery

A
  • Falciform Ligaments
  • Coronary Ligaments
  • Triangular ligaments
19
Q

Name the ligament derived from the Dorsal Mesentery.

A

Gastrorenal Ligament

20
Q

Name the anatomical position of the Dorsal mesentary before and after embryonic rotation respectively.

A

Dorsal to Lateral

21
Q

Name the anatomical position of the Left Vagus nerve after embryonic rotation.

A

Ventral Position

22
Q

Persistence of vitelline duct causing out-pocketing of ileum leading to inflammation and appendicitis-like symptoms.

A

Ileal / Meckel’s Diverticulum

Medical MicroAnatomy (2 decks)

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