Description
Efnisyfirlit
- Instructions for online access
- Cover image
- Title Page
- Table of Contents
- Copyright
- Preface
- In Memoriam
- 1 Introduction to the Nervous System
- The Nervous System Has Central and Peripheral Parts
- The Principal Cellular Elements of the Nervous System Are Neurons and Glial Cells
- Review Questions
- Answers
- Suggested Readings
- 2 Development of the Nervous System
- The Neural Tube Gives Rise to the Central Nervous System
- The Neural Crest and Cranial Placodes Give Rise to the Peripheral Nervous System
- Adverse Events During Development Can Cause Congenital Malformations of the Nervous System
- Review Questions
- Answers
- Suggested Readings
- 3 Gross Anatomy and General Organization of the Central Nervous System
- The Long Axis of the CNS Bends at the Cephalic Flexure
- Hemisecting a Brain Reveals Parts of the Diencephalon, Brainstem, and Ventricular System
- Humans, Relative to Other Animals, Have Large Brains and Many Neurons
- Named Sulci and Gyri Cover the Cerebral Surface
- The Diencephalon Includes the Thalamus and Hypothalamus
- Most Cranial Nerves Are Attached to the Brainstem
- The Cerebellum Includes a Vermis and Two Hemispheres
- Sections of the Forebrain Reveal the Basal Nuclei and Limbic Structures
- Parts of the Nervous System Are Interconnected in Systematic Ways (Generalizations)
- Review Questions
- Answers
- Suggested Readings
- 4 Meningeal Coverings of the Brain and Spinal Cord
- There Are Three Meningeal Layers: the Dura Mater, Arachnoid, and Pia Mater
- The Dura Mater Provides Mechanical Strength
- The Arachnoid Mater
- Pia Mater Covers the Surface of the CNS
- Lymphatics of the CNS
- The Vertebral Canal Contains a Spinal Epidural Space
- Bleeding Can Open Up Potential Meningeal Spaces
- Parts of the CNS Can Herniate From One Intracranial Compartment Into Another
- Review Questions
- Answers
- Suggested Readings
- 5 Ventricles and Cerebrospinal Fluid
- The Brain Contains Four Ventricles
- Choroid Plexus Is the Source of Most CSF
- Imaging Techniques Allow Noninvasive Visualization of the CNS
- Disruption of CSF Circulation Can Cause Hydrocephalus
- Review Questions
- Answers
- Suggested Readings
- 6 Blood Supply of the Brain
- The Internal Carotid Arteries and Vertebral Arteries Supply the Brain
- Imaging Techniques Allow Arteries and Veins to Be Visualized
- Blood Flow to the CNS Is Closely Controlled
- A System of Barriers Partially Separates the Nervous System From the Rest of the Body
- Superficial and Deep Veins Drain the Brain
- Review Questions
- Answers
- Suggested Readings
- 7 Electrical Signaling by Neurons
- A Lipid-Protein Membrane Separates Intracellular and Extracellular Fluids
- Inputs to Neurons Cause Slow, Local Potential Changes
- Action Potentials Convey Information Over Long Distances
- Resistors, Capacitors, and Neuronal Membranes
- Calculating the Membrane Potential
- Review Questions
- Answers
- Suggested Readings
- 8 Synaptic Transmission Between Neurons
- There Are Five Steps in Conventional Chemical Synaptic Transmission
- Synaptic Transmission Can Be Rapid and Point-to-Point, or Slow and Often Diffuse
- Synaptic Strength Can Be Facilitated or Depressed
- Most Neurotransmitters Are Small Amine Molecules, Amino Acids, or Neuropeptides
- Gap Junctions Mediate Direct Current Flow From One Neuron to Another
- Review Questions
- Answers
- Suggested Readings
- 9 Sensory Receptors and the Peripheral Nervous System
- Receptors Encode the Nature, Location, Intensity, and Duration of Stimuli
- Somatosensory Receptors Detect Mechanical, Chemical, or Thermal Changes
- Peripheral Nerves Convey Information to and From the CNS
- Review Questions
- Answers
- Suggested Readings
- 10 Spinal Cord
- The Spinal Cord Is Segmented
- All Levels of the Spinal Cord Have a Similar Cross-Sectional Structure
- The Spinal Cord Is Involved in Sensory Processing, Motor Outflow, and Reflexes
- Spinal Gray Matter Is Regionally Specialized
- Reflex Circuitry Is Built Into the Spinal Cord
- Ascending and Descending Pathways Have Defined Locations in the Spinal White Matter
- The Autonomic Nervous System Monitors and Controls Visceral Activity
- A Longitudinal Network of Arteries Supplies the Spinal Cord
- Spinal Cord Damage Causes Predictable Deficits
- Review Questions
- Answers
- Suggested Readings
- 11 Organization of the Brainstem
- The Brainstem Has Conduit, Cranial Nerve, and Integrative Functions
- The Medulla, Pons, and Midbrain Have Characteristic Gross Anatomical Features
- The Internal Structure of the Brainstem Reflects Surface Features and the Position of Long Tracts
- The Reticular Core of the Brainstem Is Involved in Multiple Functions
- Some Brainstem Nuclei Have Distinctive Neurochemical Signatures
- The Brainstem Is Supplied by the Vertebral-Basilar System
- Review Questions
- Answers
- Suggested Readings
- 12 Cranial Nerves and Their Nuclei
- Cranial Nerve Nuclei Have a Generally Predictable Arrangement
- Cranial Nerves III, IV, VI, XI, and XII Contain Somatic Motor Fibers
- Branchiomeric Nerves Contain Axons From Multiple Categories
- Review Questions
- Answers
- Suggested Readings
- 13 The Chemical Senses of Taste and Smell
- The Perception of Flavor Involves Gustatory, Olfactory, Trigeminal, and Other Inputs
- Taste Is Mediated by Receptors in Taste Buds Innervated by Cranial Nerves VII, IX, and X
- Olfaction Is Mediated by Receptors That Project Directly to the Telencephalon
- Review Questions
- Answers
- Suggested Readings
- 14 Hearing and Balance
- Auditory and Vestibular Receptor Cells Are Located in the Walls of the Membranous Labyrinth
- The Cochlear Division of the Eighth Nerve Conveys Information About Sound
- The Vestibular Division of the Eighth Nerve Conveys Information About Linear and Angular Acceleration of the Head
- Position Sense Is Mediated by the Vestibular, Proprioceptive, and Visual Systems Acting Together
- Review Questions
- Answers
- Suggested Readings
- 15 Atlas of the Human Brainstem
- 16 The Thalamus and Internal Capsule
- The Diencephalon Includes the Epithalamus, Subthalamus, Hypothalamus, and Thalamus
- The Thalamus Is the Gateway to the Cerebral Cortex
- Interconnections Between the Cerebral Cortex and Subcortical Structures Travel Through the Internal Capsule
- Review Questions
- Answers
- Suggested Readings
- 17 The Visual System
- The Eye Has Three Concentric Tissue Layers and a Lens
- The Retina Contains Five Major Neuronal Cell Types
- Retinal Neurons Translate Patterns of Light Into Patterns of Contrast
- Half of the Visual Field of Each Eye Is Mapped Systematically in the Contralateral Cerebral Hemisphere
- Primary Visual Cortex Sorts Visual Information and Distributes It to Other Cortical Areas
- Early Experience Has Permanent Effects on the Visual System
- Reflex Circuits Adjust the Size of the Pupil and the Focal Length of the Lens
- Suggested Readings
- 18 Overview of Motor Systems
- Each Lower Motor Neuron Innervates a Group of Muscle Fibers, Forming a Motor Unit
- Motor Control Systems Involve Both Hierarchical and Parallel Connections
- The Corticospinal Tract Has Multiple Origins and Terminations
- Review Questions
- Answers
- Suggested Readings
- 19 Basal Nuclei
- The Basal Nuclei Include Five Major Groups of Cells
- Basal Nuclei Circuitry Involves Multiple Parallel Loops That Modulate Cortical Output
- Interconnections of the Basal Nuclei Determine the Pattern of Their Outputs
- Perforating Branches From the Cerebral Arterial Circle (of Willis) Supply the Basal Nuclei
- Many Basal Nuclei Disorders Result in Abnormalities of Movement
- Review Questions
- Answers
- Suggested Readings
- 20 Cerebellum
- The Cerebellum Can Be Divided Into Both Transverse and Longitudinal Zones
- Cerebellar Cortex Receives Multiple Inputs
- Each Longitudinal Zone Has a Distinctive Output
- Clinical Syndromes Correspond to Functional Zones
- Review Questions
- Answers
- Suggested Readings
- 21 Eye Movements
- Six Extraocular Muscles Move the Eye in the Orbit
- There Are Fast and Slow Conjugate Eye Movements
- Changes in Object Distance Require Vergence Movements
- The Basal Nuclei and Cerebellum Participate in Eye Movement Control
- Suggested Readings
- 22 Cerebral Cortex
- Most Cerebral Cortex Is Neocortex
- Neocortical Areas Are Specialized for Different Functions
- The Corpus Callosum Unites the Two Cerebral Hemispheres
- Consciousness and Sleep Are Active Processes
- Review Questions
- Answers
- Suggested Readings
- 23 Drives and Emotions
- The Hypothalamus Coordinates Drive-Related Behaviors
- Limbic Structures Are Interposed Between the Hypothalamus and Neocortex
- Review Questions
- Answers
- Suggested Readings
- 24 Formation, Modification, and Repair of Neuronal Connections
- Both Neurons and Connections Are Produced in Excess During Development
- Synaptic Connections Are Adjusted Throughout Life
- PNS Repair Is More Effective Than CNS Repair
- Review Questions
- Answers
- Suggested Readings
- 25 Atlas of the Human Forebrain
- Glossary
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- L
- M
- N
- O
- P
- R
- S
- T
- U
- V
- W
- Z
- Index
- Cardboard