Jejunum and Ileum

Question 1

Jejunum (proximal 2/5) begins at the ____ (lies in the LUQ)

Answer 1

duodeno-jejunal flexure

Question 2

Ileum (distal 3/5) end at the ____ (lies in the RLQ)

Answer 2

ileocecal junction

Question 3

What is the length of the jejunum and ileum

Answer 3

20ft or 6 meters long

Question 4

What artery supplies the jejunum and ileum?

Answer 4

Superior mesenteric artery (L1)

Question 5

What gives rise to the vasa recta of the jejunum and ileum?

Answer 5

Arterial arcades

Question 6

[Jejunum vs ileum]

deeper red

Answer 6

jejunum

Question 7

[Jejunum vs ileum]

larger caliber, thicker walls, higher vascularity

Answer 7

jejunum

Question 8

[Jejunum vs ileum]

plicae circularis are large and tall, few fat

Answer 8

jejunum

Question 9

[Jejunum vs ileum]

paler pink color

Answer 9

ileum

Question 10

[Jejunum vs ileum]

smaller caliber, thin and light, lesser vascularity

Answer 10

ileum

Question 11

[Jejunum vs ileum]

numerous arcades
more fat
plicae circularis is low, sparse

Answer 11

ileum

Question 12

[Jejunum vs ileum]

many lymphoid noduses/presence of peyer patches

Answer 12

ileum

Question 13

[Jejunum vs ileum]

meckel’s diverticulum is seen here usually

Answer 13

ileum

Question 14

[Diagnosis]

severe intermitten abdominal pain alternating periods of no pain, palpable RUQ mass, vomiting, currant jelly stools

Answer 14

Intussusception

Question 15

What are the radiographic findings (UTZ) in Intussusception?

Answer 15

Doughnut sign, Target sign, pseudokidney sign

Question 16

What is the pathognomonic sign of intussusception in contrast enema?

Answer 16

Coiled spring appearance