Section 6.16 – Mechanisms of connection and attachment
Removal of the mesenteric domain
Provides an excellent opportunity to explain
The mechanisms by which it is attached and connected before dissection
Peripherally, one has the reflection
The fascia is an intermediate mechanism in so far as it is positioned
Between the central region of connection, and the peripheral
Region of attachment
Central mechanisms of attachment include the vessels that
Make up the arterial inflow and venous drainage of the mesenteric domain
After detachment of the mesentery
It must then be disconnected by dividing these major vessels
The coeliac trunk and superior mesenteric artery are
Large in calibre at their origin
Where they are surrounded by a dense connective tissue
The inferior mesenteric artery is much narrower in calibre
But also arises from the anterior surface of the aorta
The divided edges of the inferior vena cava can be inspected
After removal of the mesenteric domain
The hepatic veins enter the inferior vena cava
And represent the main venous drainage of the mesenteric domain