Chapter 34 Opener Chapter 34: Neurons and The Nervous System

Concept 34.1 Nervous Systems Consist of Neurons and Glia Parts of a neuron Define EACH of the following terms regarding a neuron. Be sure to include the function of each: Axon Axon hillock Axon terminal Cell body Dendrite Nucleus Presynaptic cell Postsynaptic cell Synapse

Concept 34.1 Nervous Systems Consist of Neurons and Glia What do axons do? a. The major function of an axon is to transmit electrical signals from one location to another. b. Axons are the primary location where a neuron receives information from other neurons. c. Axons manufacture neurotransmitter. d. Axons are the primary location where a neuron releases neurotransmitter. e. All of the above

Figure 34.1 A Generalized Neuron

Figure 34.2 Wrapping Up an Axon

Figure 34.2 Wrapping Up an Axon (Part 1)

Figure 34.3 Nervous Systems Vary in Size and Complexity (Part 3)

Figure 34.4 Measuring the Membrane Potential

Figure 34.5 Ion Transporters and Channels (Part 1)

Figure 34.5 Ion Transporters and Channels (Part 2)

Figure 34.6 Membranes Can Be Depolarized or Hyperpolarized

Figure 34.7 The Course of an Action Potential

Figure 34.7 The Course of an Action Potential (Part 1)

Figure 34.7 The Course of an Action Potential (Part 2)

Figure 34.9 Chemical Synaptic Transmission

Figure Chemically Gated Channels

Figure The Postsynaptic Neuron Sums Information

Figure Organization of the Nervous System

Figure The Autonomic Nervous System

Figure The Spinal Cord Coordinates the Knee-jerk Reflex

Figure The Limbic System

Figure The Human Cerebrum (Part 1)

Figure The Human Cerebrum (Part 2)

Figure The Body Is Represented in Primary Motor and Primary Somatosensory Cortexes

Concept 34.4 The Vertebrate Nervous System Has Many Interacting Components Reviewing the divisions of the nervous system Make a chart showing the relationships of these parts of the nervous system: Sympathetic nervous system Parasympathetic nervous system Central nervous system Peripheral nervous system Autonomic nervous system Afferent pathways Efferent pathways

Figure Imaging Techniques Reveal Active Parts of the Brain