Venous Return in the Abdomen: Page 5 of 9
 |
| Click on image to enlarge |
Now add the drainage from the midgut and hindgut.
| Add the superior rectal veins. | |
| Add the sigmoid veins. | |
| Add the left colic veins. |
Although the collateral connctions from the rectal veins to the iliac veins cannot be seen, this conncetion provides another porto-systemic connection to relieve portal hypertension.
To what would flow and pressure in this drainage system lead? |
|
|
Anorectal hemorroids. |
|
 |
| Click on image to enlarge |
| Add the jejunal veins. | |
| Add the ileal veins. | |
| Add the ileocolic veins. | |
| Add the right colic veins. | |
| Add the middle colic veins. |
Notice that the venous drainage closely follows the arterial supply of structures.