colon - venous drainage and lymphatics

Question 1

what is the venous drainage to the colon like?

Answer 1

similar to the arterial supply

Question 2

what is the venous drainage to the ascending colon?

Answer 2

ileocolic and right colic veins

Question 3

what do the ileocolic and right colic veins empty into?

Answer 3

superior mesenteric vein

Question 4

what is the venous drainage of the transverse colon?

Answer 4

superior mesenteric vein

Question 5

what is the venous drainage of the descending colon?

Answer 5

left colic vein

Question 6

what does the left colic vein drain into?

Answer 6

inferior mesenteric vein

Question 7

what is the venous drainage to the sigmoid colon?

Answer 7

sigmoid veins

Question 8

what do the sigmoid veins drain into?

Answer 8

inferior mesenteric vein

Question 9

what do the superior and inferior mesenteric veins ultimately empty into?

Answer 9

the hepatic portal vein

Question 10

what does emptying into the hepatic portal vein allow?

Answer 10

This allows toxins absorbed from the colon to be processed by the liver for detoxification

Question 11

what does the innervation of the colon dependent on?

Answer 11

embryological origin

Question 12

what are the midgut-derived structures?

Answer 12

ascending colon and proximal 2/3 of the transverse colon

Question 13

where do the midgut-derived structures receive their sympathetic, parasympathetic and sensory supply from?

Answer 13

via nerves from the superior mesenteric plexus

Question 14

what are the hindgut-derived structures?

Answer 14

distal 1/3 of the transverse colon, descending colon and sigmoid colon

Question 15

where do hindgut-derived structures receive their sympathetic, parasympathetic and sensory supply from?

Answer 15

via nerves from the inferior mesenteric plexus

Question 16

what is the parasympathetic innervation supplied by?

Answer 16

the pelvic splanchnic nerves

Question 17

what is the sympathetic innervation supplied via?

Answer 17

the lumbar splanchnic nerves

Question 18

what is the lymphatic drainage of the ascending and transverse colon into?

Answer 18

the superior mesenteric nodes.

Question 19

what is the lymphatic drainage of the descending and sigmoid colon?

Answer 19

inferior mesenteric nodes

Question 20

where do most of the lymph from the superior and inferiro mesenteric nodes pass into?

Answer 20

the intestinal lymph trunks

Question 21

where do the lymph drainage pass onto after the intestinal lymph trunks?

Answer 21

onto the cisterna chyli

Question 22

where does the cisterna chyli empty into?

Answer 22

the thoracic duct