Figure 10
From: A Differential Approach to Form and Site of Peptic Ulcer
Model of the intestinal wall to derive the differential equation of intestinal blood flow. The model considers an element ΔxΔy of the intestinal wall, consisting of a transmuscular influx (bottom), a submucosal (middle) and a terminal outflow compartment (top). This outflow compartment consists of a mucosal component and a part component of the muscle layer, which is supplied by retrograde arteries as well. The systemic arterial perfusion-pressure Δp0 reduces over the intestinal wall as a whole. At the submucosal level the variable gradient Δp(x,y) will serve for the perfusion of the terminal vascular bed. Transmuscular influx iα, terminal outflow iω and lateral flow iλ in the submucosal compartment will be considered.
