Superior and Inferior mesenteric arteries

Question 1

Superior mesenteric artery supplies…

Answer 1

Question 2

Pancreas function

Answer 2

• Produces exocrine secretions (digestive)
• Produces endocrine secretions (hormones)

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Pancreas and duodenum blood supply

Answer 7

Question 8

Pancreas and duodenum venous drainage

Answer 8

Question 9

Jejunum differentiating features

Answer 9

• Tall plicae circulares
• Few, wide arcades (blood supply)
• Long vasa recta
• Larger diameter

Question 10

Ileum differentiating features

Answer 10

• Few plicae circulares
• Many, small arcades
• Short vasa recta
• Peyer’s patches

Question 11

Answer 11

Question 12

Loss of blood supply to bowel causes:

Answer 12

Ischemic bowel (due to thrombosis or volvulus)

Question 13

Large intestine function

Answer 13

• Absorption of water, vitamins
• Storage, compaction of wastes

Question 14

Answer 14

Question 15

Answer 15

Question 16

Answer 16

Question 17

Large intestine blood supply (to proximal transverse colon)

Answer 17

Question 18

Large intestine SMV drainage

Answer 18

Question 19

Specialized lymphatics in villi of small intestine

Answer 19

Lacteals

Question 20

Midgut sympathetic innervation

Answer 20

Sympathetic trunk to thoracic splanchnic nerve to superior mesenteric ganglion (synapse) then to organs

Question 21

Midgut parasympathetic innervation

Answer 21

Vagus nerve to superior mesenteric ganglion to organ

Question 22

Function of midgut parasympathetic and sympathetic

Answer 22

Parasympathetic:

• Increases intestinal motility and secretion

Sympathetic:

• Decreases intestinal motility and secretion
• Vasoconstrictor

Question 23

Large intestine IMA supply

Answer 23

Question 24

Large intestine IMV drainage

Answer 24

Question 25

Major lymphatics of hindgut travel through

Answer 25

Inferior mesenteric lymph nodes

Question 26

Sympathetic to hindgut

Answer 26

Lumbar splanchnic (L1- L2) nerve to inferior mesenteric ganglion then (postganglion) to autonomic plexus then to organ

Question 27

Parasympathetic to hindgut

Answer 27

Pelvic splanchnic (S2-S4) nerve to autonomic plexus then to organs