Ch. 12 - The Nervous System I: Neurons and Neuronal NetworksWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Physiology
Ch. 2 - Molecules and Molecular Interactions
Ch. 3 - Cells and Tissues
Ch. 4 - Cell Metabolism: Bioenergetics, Enzymes, and Respiration
Ch. 5 - Membrane Dynamics
Ch. 6 - Cell Communication
Ch. 7 - Integumentary System
Ch. 8 - Bone and Cartilage
Ch. 9 - Skeletal System
Ch. 10 - Joints
Ch. 11 - Muscles
Ch. 12 - The Nervous System I: Neurons and Neuronal Networks
Ch. 13 - The Nervous System II: The Central Nervous System
Ch. 14 - The Autonomic Nervous System
Ch. 15 - Sensory Physiology
Ch. 16 - The Endocrine System
Ch. 17 - Cardiovascular Physiology I: The Heart
Ch. 18 - Cardiovascular Physiology II: Blood, Blood Vessels, Circulation, and Exchange
Ch. 19 - The Urinary System
Ch. 20 - Respiratory Physiology
Ch. 21 - Acid-Base Balance-- Controlling Blood pH
Ch. 22 - Introduction to the Immune System
Ch. 23 The Lymphatic System
Ch. 23 - The Digestive System
Ch. 24 - Regulation of Metabolism and Energy Balance
Ch. 25 - Human Sexual Reproduction and Development
Sections
Nervous System Organization
Neuron Structure
Neuron Classification
Nerves
Cells of the Nervous System
Glial Cells
Myelination
Electrical Signals in Neurons I: Membrane Potential Vocabulary
Electrical Signals in Neurons II: Graded vs. Action Potentials
Electrical Signals in Neurons III: Action Potentials
Action Potential Propagation
The Refractory Period
Neuronal Cell-to-Cell Communication: Synaptic Transmission
Synaptic Integration I: Post-Synaptic Potentials (EPSPs and IPSPs)
Synaptic Integration II: Summation
Common Neurotransmitters and Receptors
Learn
Next SectionThe Refractory Period

Concept #1: The Spike-Initiating Zone

Concept #2: Longitudinal Currents and AP Spread

Concept #3: Active vs. Passive Spread

Concept #4: The Function of Myelination

Practice: A neuron is depolarized from Vrest= -70 mV to -30 mV in its dendrite. As a result of this depolarization, Vm at the spike-initiating zone remains at Vm= -70 mV. Which of the following is likely to happen in this neuron as a result of this depolarization in the dendrite?

Practice: Multiple sclerosis is a chronic disease characterized by demyelination of neuronal axons. Which of the following accurately describes the predicted effects of multiple sclerosis on neuronal conduction velocity and action potential spread, respectively?

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Next SectionThe Refractory Period