🫁 Alveolar Capillary: Red-Cell Oxygen Loading, Membrane Diffusion Limit and Transit Time — 2D Capillary Chart

2D companion of the alveolar capillary oxygen-loading lab: the capillary as a time axis with Bohr integration, dissociation curve, series diffusing resistances and the diffusion-limit verdict, driven by the 3D lab's own physics module.