1 Introduction to Physiology 31 2 The Cell Structure and Function 48 3 Cell Metabolism 86 4 Cell Membrane Transport 123 5 Chemical Messengers 154 6 The Endocrine System: Endocrine Glands and Hormone Actions 178 7 Nerve Cells and Electrical Signaling 196 8 Synaptic Transmission and Neural Integration 226 9 The Nervous System: Central Nervous System 245 10 The Nervous System: Sensory Systems 283 11 The Nervous System: Autonomic and Motor Systems 333 12 Muscle Physiology 352 13 The Cardiovascular System: Cardiac Function 389 14 The Cardiovascular System: Blood, Blood Flow, and Blood Pressure 42415 The Cardiovascular System: Blood 462 16 The Respiratory System: Pulmonary Ventilation 478 17 The Respiratory System: Gas Exchange and Regulation of Breathing 503 18 The Urinary System: Renal Function 533 19 The Urinary System: Fluid and Electrolyte Balance 561 20 The Gastrointestinal System 595 21 The Endocrine System: Regulation of Energy Metabolism and Growth 632 22 The Reproductive System 661 23 The Immune System 698 24 Diabetes Mellitus 731