31. The microcirculation and lymphatic system
31. The microcirculation and lymphatic system
- Gillian Pocock, Gillian PocockSenior Lecturer in Clinical Science, Canterbury Christ Church University, Canterbury, UK
- Christopher D. RichardsChristopher D. RichardsEmeritus Professor of Experimental Physiology, Division of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University College London, London, UK
- and David A. RichardsDavid A. RichardsAssociate Professor, Department of Basic Pharmaceutical Sciences, Husson University School of Pharmacy, Bangor, Maine, USA
Abstract
This chapter highlights the chief function of circulation, which is the exchange of fluid, nutrients, and metabolites between the blood and tissues. It details how blood flows from the arterioles to the venules via the capillaries, which are the main exchange vessels. In the course of tissue exchange, a small volume of fluid passes from the capillaries to the interstitial space. The chapter outlines the basic organization of the lymphatic system and its role in the regulation of the volume of the interstitial fluid. The arterioles that branch directly from the arteries are known as primary arterioles, and they are extensively innervated by sympathetic nerve fibres.
