RT Book, Section A1 Freeman, Brian S. A1 Berger, Jeffrey S. SR Print(0) ID 1204769680 T1 Microcirculation T2 Anesthesiology Core Review: Part One: BASIC Exam, 2nd Edition YR 2024 FD 2024 PB McGraw-Hill Education PP New York, NY SN 9781264285518 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1204769680 RD 2024/09/19 AB Microcirculation can be defined structurally as blood vessels less than 150 μm in diameter and encompasses the arterioles, capillaries, and venules. Structurally, capillaries consist of a single layer of epithelium along with a basement membrane. The parenchymal cells are arranged in close proximity to at least one capillary to ensure an adequate oxygen supply through passive diffusion.