Section I-Peripheral Nerve.- 1 Peripheral Nerve Structure.- 1. Introduction.- 2. Histology and Development.- 3. The Axon.- 3.1. Filaments and Microtubules.- 3.2. Other Organelles and the Axolemma.- 4. Sheaths of Axons.- 4.1. Schwann Cells.- 4.2. Myelin.- 4.3. Function of Schwann Cells and Their Myelin Sheaths.- 4.4. Connective Tissue Sheaths.- 5. References.- 2 The Nerve Impulse.- 1. Introduction.- 2. Passive Electrical Properties.- 3. Voltage-Clamp Analysis of the Ionic Current.- 4. Momentary Current-Voltage Relations.- 5. The Threshold Conditions for Excitation.- 6. Factors Determining Conduction Velocity.- 7. References.- 3 Axoplasmic Transport-Energy Metabolism and Mechanism.- 1. Introduction.- 2. Fast Axoplasmic Transport.- 2.1. Characterization.- 2.2. Mechanism and Energy Supply.- 2.3. Transport and Membrane Function.- 3. Slow Axoplasmic Transport.- 3.1. Characterization.- 3.2. Mechanism.- 4. References.- Section IIA-Junctional Transmission-Structure.- 4 Neuromuscular Junctions and Electric Organs.- 1. Introduction.- 2. The Typical Neuromuscular Junction.- 2.1. Distribution and Location of Nerve Terminals.- 2.2. The Axon.- 2.3. The Synaptic Space.- 2.4. Postjunctional Muscle Fiber.- 3. Variations of Motor End Plates.- 3.1. Variations from Class to Class.- 3.2. Endings on Slow-Twitch and Rapid-Twitch Fibers.- 3.3. Endings on Slow Tonic Muscle Fibers.- 4. Electric Organs.- 4.1. Electrocytes.- 4.2. Innervation and Ultrastructure.- 5. References.- 5 The Peripheral Autonomic System.- 1. Anatomical Considerations: Sympathetic and Parasympathetic Divisions.- 2. Morphological Observations.- 2.1. Preganglionic Neurons.- 2.2. Postganglionic Neurons.- 2.3. Adrenal and Extra-Adrenal Chromaffin Cells.- 3. References.- 6 Ultrastructure of Ganglionic Junctions.- 1. General Considerations.- 2. Sympathetic Ganglia.- 2.1. Amphibia.- 2.2. Reptiles.- 2.3. Mammals.- 2.4. Some Effects of Different Fixatives.- 3. Parasympathetic Ganglia.- 3.1. Ciliary Ganglion.- 3.2. Otic Ganglion.- 3.3. Ganglia of the Enteric Plexuses.- 3.4. Cardiac Ganglion Cells.- 4. Summary and Comment.- 5. References.- Section IIB-Junctional Transmission-Function.- 7(i) Neuromuscular Transmission-Presynaptic Factors.- 1. Synthesis, Storage, and Release of Acetylcholine.- 1.1. Synthesis of ACh.- 1.2. Storage and Release.- 2. The Acceleration of Release by Nerve Impulses.- 2.1. The Role of the Nerve Impulse.- 2.2. The Role of Ca2+.- 2.3. After- Effects of Depolarization-Secretion Coupling.- 3. References.- 7 (ii) Neuromuscular Transmission-The Transmitter-Receptor Combination.- 1. Introduction.- 2. Molecular Basis of Chemoelectric Transduction.- 3. Pharmacology.- 4. Chemical Nature of the Acetylcholine Receptor.- 5. Desensitization.- 6. References.- 7 (iii) Neuromuscular Transmission-Enzymatic Destruction of Acetylcholine.- 1. Location and Measurement of Cholinesterases at the Junction.- 1.1. Histochemical Staining.- 1.2. Microchemical Methods.- 1.3. Assay of External AChE.- 1.4. Radioautographic Methods.- 2. Amounts and Types of Cholinesterase at the Junctions.- 3. Requirement for AChE in Impulse Transmission.- 4. Relation of AChE to ACh- Receptors.- 5. Quantitative Relation of AChE to ACh at the End Plate.- 6. References.- 8 Ganglionic Transmission.- 1. Introduction.- 2. Response of Autonomic Ganglia to Preganglionic Volleys.- 2.1. Response of Normal Ganglia.- 2.2. Response of Curarized Ganglia.- 2.3. Slow Ganglionic Responses and Afterdischarges.- 3. Electrical Constants of Ganglion Cell Membrane.- 4. Action Potentials of Single Ganglion Cells.- 4.1. Response to Antidromic Stimulation.- 4.2. Response to Direct Intracellular Stimulation.- 4.3. Response to Orthodromic Stimulation.- 4.4. Ionic Requirement for Generation of Action Potential.- 5. Nature and Electrogenesis of Postsynaptic Potentials.- 5.1. The "Fast" Excitatory Postsynaptic Potential.- 5.2. The "Slow" Excitatory Postsynaptic Potential.- 5.3. The "Late Slow" Excitatory Postsynaptic Potential.- 5.4. The "Slow" Inhibitory Postsynaptic Potential.- 6. Cholinergic and Adrenergic Receptors at Preganglionic Nerve Terminals.- 6.1. Cholinergic Receptor Site.- 6.2. Adrenergic Receptor Site.- 7. References.- 9 Function of Autonomic Ganglia.- 1. Introduction.- 2. Ganglia as Coordinating Centers.- 2.1. The Relay Hypothesis of Ganglionic Function.- 2.2. Development of a Stochastic Hypothesis.- 3. Experimental Evidence.- 3.1. Observed Patterns of Innervation.- 3.2. Ganglionic Activity and Factors Influencing It.- 3.3. Relative Autonomy of Ganglia.- 4. Conclusions.- 5. References.- 10 Peripheral Autonomic Transmission.- 1. Introduction.- 2. Definition of the Autonomic Neuromuscular Junction.- 2.1. Relation of Nerve Fibers to Muscle Effector Bundles.- 2.2. Relation of Nerve Fibers to Individual Smooth Muscle Cells.- 3. Adrenergic Transmission.- 3.1. Introduction.- 3.2. Structure of Adrenergic Neurons and Storage of Noradrenaline.- 3.3. Electrophysiology of Adrenergic Transmission.- 3.4. Ionic Basis of the Action of Catecholamines on the Postjunctional Membrane.- 3.5. Summary.- 4. Cholinergic Transmission.- 4.1. Introduction.- 4.2. Localization of Acetylcholinesterase.- 4.3. Electrophysiology of Cholinergic Transmission.- 4.4. Ionic Basis of the Action of ACh on the Postjunctional Membrane.- 4.5. Summary.- 5. Purinergic Transmission.- 5.1. Introduction.- 5.2. Electrophysiology of Purinergic Transmission.- 5.3. Summary.- 6. Conclusions.- 7. References.- 11 "Trophic" Functions.- 1. Introduction.- 2. Regulation of Taste Buds.- 3. Regulation of Amphibian Limb Regeneration.- 4. Regulation of Physiological and Metabolic Properties of Muscle.- 4.1. Resting Membrane Potential.- 4.2. Acetylcholine Sensitivity.- 4.3. Cholinesterase Activity.- 4.4. The Role of ACh Release.- 4.5. The Dynamic Nature of the Muscle Fiber.- 4.6. Plasticity of the Motor Unit.- 5. Mechanisms of Neural Regulation.- 6. References.- Section III-Receptors-Structure and Function.- 12 Cutaneous Receptors.- 1. Introduction.- 2. Morphology of Cutaneous Nerves.- 2.1. Uniformity of Cutaneous Axons.- 2.2. Relative Numbers of Myelinated and Nonmyelinated Axons.- 3. Morphology of Cutaneous Receptors.- 3.1. Encapsulated Receptors.- 3.2. Unencapsulated Corpuscular Receptors.- 3.3. Noncorpuscular Receptors.- 4. Physiology of Cutaneous Receptors.- 4.1. Cutaneous Mechanoreceptors.- 4.2. Cutaneous Thermoreceptors.- 4.3. Nociceptors.- 5. References.- 13 The Pacinian Corpuscle.- 1. Introduction.- 2. Morphology.- 3. Afferent Responses to Mechanical Stimuli.- 4. Mechanical Properties of the Corpuscle.- 5. Receptor Potentials.- 6. Impulse Activity in the Nerve Terminal.- 7. Distribution of Pacinian Corpuscles.- 8. Central Effects of Impulses from Pacinian Corpuscles.- 9. References.- 14 Receptors in Muscles and Joints.- 1. Introduction.- 2. Joint Receptors.- 3. Tendon Organs.- 4. Muscle Spindles.- 4.1. Reptiles.- 4.2. Amphibia.- 4.3. Birds.- 4.4. Mammals.- 5. Uncertain Origin of Adaptation.- 6. References.- 15 Enteroceptors.- 1. Introduction.- 2. Methods.- 2.1. Histology.- 2.2. Physiology.- 3. Cardiovascular Receptors.- 3.1. Systemic Arterial Baroreceptors.- 3.2. Pulmonary Arterial Baroreceptors.- 3.3. Ventricular Receptors.- 3.4. Atriovenous Receptors.- 4. Respiratory System Receptors.- 4.1. Cough and Irritant Receptors.- 4.2. Pulmonary Stretch Receptors.- 4.3. Type J Receptors.- 4.4. Other Receptors.- 5. Alimentary System Receptors.- 5.1. Muscular Receptors.- 5.2. Serosal Receptors.- 5.3. Muscularis Mucosae Receptors.- 5.4. Chemoreceptors.- 5.5 Hepatic Osmoreceptors.- 6. Urinary Tract Receptors.- 6.1. Bladder.- 6.2. Urethra.- 7. Other Enteroreceptors.- 8. References.- 16 Arterial Chemoreceptors.- 1. Introduction.- 2. Structure.- 2.1. Light Microscopy.- 2.2. Electron Microscopy.- 2.3. Degeneration Studies.- 3. Function.- 3.1. Types of Activity in the Nerve Supply to the Receptor Complex.- 3.2. The Type I Cell.- 4. The Identity of the Receptor.- 4.1. The Received View.- 4.2. A New Hypothesis.- 5. References.- 17 Taste Receptors.- 1. Introduction.- 2. Gustatory Nerve Fiber Response to Chemical Stimuli.- 2.1. Multiple Sensitivity of Single Chorda Tympani Fibers.- 2.2. Neural Code for Quality of Taste and "Across-Fiber Pattern" Theory.- 3. Electrical Responses of Gustatory Cells to Chemical Stimuli.- 3.1. Innervation and Structure of Taste Bud.- 3.2. How Do Gustatory Cells Respond to Chemical Stimuli?.- 4. References.
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