1 Carotid Body: The Primary Peripheral Arterial Chemoreceptor -- 2 History and Recent Progress in Carotid Body Studies -- 3 General Morphology of the Mammalian Carotid Body -- 4 Structural Plasticity of Carotid Bodies -- 5 Mechanisms of Chemosensory Transduction at the Carotid Body -- 6 Neurochemical Anatomy of the Mammalian Carotid Body -- 7 Neurochemical Plasticity of Carotid Bodies -- 8 Carotid Body Dysfunction and Mechanisms of Disease -- 9 Stem Cell Niche in the Mammalian Carotid Body -- 10 Carotid Body and Cell Therapy -- 11 The Carotid Body: a Tiny Structure with Many Roles.