Initial distribution in the storage and compartments X
. Secreted insulin X(G,0)(dashed line) is the whole amount of insulin releasable by the pancreas at glucose concentration G. It is the integral over the initial packet distribution ξ(θ,0) (solid line). X1is the releasable and X2the non‐releasable amount of insulin. In the plot they can be identified as areas under the solid curve ξ(θ,0)ranging from θ = [0,G and from θ = G ∞), respectively. The figure is adapted from.