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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
Cells of the Nervous System
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
Nervous System Organization
Neuron Structure
Neuron Classification
Nerves
Glial Cells
Myelination
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?

Previous SectionElectrical Signals in Neurons III: Action Potentials
Next SectionThe Refractory Period