Tierphysiologie Temperature Regulation Bone Growth in Width Glucose Regulation in the Pancreas Action Potentials and Muscle Contraction Breakdown of ATP and Cross Bridge Movement during Muscle Contraction How Lungs Work Kidney / Niere Introduction to the kidney Kidney Function: Counter-current Mechanism The Nephron Nervous system / Nervensystem Neuron Action Potential and Propagation The Nerve Impulse Transmission Across a Synapse The Synapse Sensory Systems Effect of Sound Waves on the ear Immune system / Immunsystem The Specific Immune Responses Introduction The Cell-mediated and Antibody-mediated Immune responses Digestion / Verdauung Small Intestine Digestion Positive and Negative Feedback in the Body Hormonal Communication Mechanism of Steroid Hormone Action Mechanism of Thyroxine Action The Digestive System Hormone System Hormonal communication Mechanisms of Steroid Hormone Activity Mechanisms of Thyroxine Activity Action of Glucocorticoid Hormones Parathyroid Hormone Endocrine System Regulation