Copyright 2009 Pearson Education, Inc. Figure 11.1 Components of the nervous system

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Copyright © 2009 Pearson Education, Inc. Figure 11.2 Types of neurons in the nervous system.

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Copyright © 2009 Pearson Education, Inc.

Figure 11.1 Components of the nervous system.

Copyright © 2010 Pearson Education, Inc.

Table 11.1 Comparison of Structural Classes of Neurons (1 of 3)

Sensory neuronsMotor neurons,CNS, and othersites

Rare.Eye, ear, nose

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Figure 11.2 Types of neurons in the nervous system.

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Figure 11.2 Types of neurons in the nervous system.

_______neuron

Axon hillock

Interneuron

Brain and spinal cord

_____neuron

Skin

Muscle

Impulse direction

Distance across the cytoplasm (not including processes) is up to 200 µm in humans (motor neurons of ventral horn of spinal cord )

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Figure 11.7a A myelinated motor neuron

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Figure 11.7a A myelinated motor neuron of the peripheral nervous system.

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Figure 11.7b A myelinated motor neuron of the peripheral nervous system.

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Figure 11.8 Summary of synaptic transmission. (1 of 4)

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Table 11.1 Actions of common neurotransmitters

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Figure 11.13 The ventricles of the brain and circulation of cerebrospinal fluid.

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Figure 11.13 The ventricles of the brain and circulation of cerebrospinal fluid.

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Figure 11.14a–b The human spinal cord.

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Figure 11.14b–c The human spinal cord.

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Figure 11.14b–c The human spinal cord.

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Figure 11.14b–d The human spinal cord.

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Figure 11.10 Spinal reflexes.

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Figure 11.10 Spinal reflexes. Slide 4

To brain

Effectormuscles(thigh)

Interneurons

Spinal cord

_____neuron _____neuron

Extensor reflexFlexor reflex

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