Lecture 5 - Blood Supply to the Gut (Part II)

Question 1

Arterial Supply of Midgut?

Answer 1

Branches of Superior Mesenteric Artery (from Abdominal Aorta)

Question 2

Venous drainage of midgut?

Answer 2

Superior mesenteric vein

Question 3

Nerve plexus of midgut?

Answer 3

Superior mesenterice plexus @ L1

Question 4

Lymphatics of midgut?

Answer 4

Pre-aortic nodes @ L1

Question 5

Referred pain of midgut?

Answer 5

Umbilical region

Question 6

Differentiation of blood supply to jejunum and ileum?

Answer 6

Ilium has more arcades with shorter branches

Question 7

Arterial Supply of small intestine?

Answer 7

Jejunal and ilial arteries

Question 8

Lymph Drainage of small intestion?

Answer 8

Pre-aortic Sup-mesenteric nodes (L1)

Question 9

Functions of Large intestine?

Answer 9

absorb water and electrolytes & store undigested material until excretion

Question 10

Haustra?

Answer 10

Sacculations of the wall

Question 11

Fatty tags of Large Intestine?

Answer 11

Appendices Epiploicae

Question 12

Teniae Coli?

Answer 12

Longitudinal muscle continuous w small intestine muscle collected in 3 bands

Question 13

Ceacum/Appendix Blood Supply?

Answer 13

Ceacal and Appendicular arteries (from Ileocolic arteries)

Question 14

Ascending colon blood supply?

Answer 14

Right colic a.

Question 15

Proximal 2/3 transverse colon blood supply?

Answer 15

Middle colic & marginal a.

Question 16

Distal 1/3 transverse colon blood supply?

Answer 16

Marginal and left colic a.

Question 17

Descending colon blood supply?

Answer 17

Left colic a.

Question 18

Sigmoid colon blood supply?

Answer 18

Sigmoid a.

Question 19

Rectum verterbral level of origin?

Answer 19

S3

Question 20

Anal canal origin level?

Answer 20

rectum pierces pelvic diaphragm at tip of coccyx

Question 21

Peritoneal divisional covering of rectum?

Answer 21

1st third ant & lat. surfaces; 2 3rd ant. only; 3rd infraperitoneal

Question 22

Final drainage of recal blood?

Answer 22

Sup. Rectal vein to IMf to Portal; Mid and Inf. Rectal to internal iliac to common iliac to IVC

Question 23

Proximal 3rd ANS Nervous of Rectum?

Answer 23

Inf. Mesenteric Plexus @ L3

Question 24

Distal 2/3rd ANS Nervous Supply?

Answer 24

Inferior/superior hypogastric plexus

Question 25

Lymphatics of Rectum?

Answer 25

Pre-aortic nodes @ L3 (proximal third); internal iliac nodes

Question 26

Portal System?

Answer 26

Portal vein formed @ L1 (trans-pyloric vein), splits into SMV and Splenic, IMV off splenic