309D S08 HW_3+A - NAME _KEY_ Homework #3 Neuron Structure...

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KEY _________ BIO 309D Homework #3 Neuron Structure and Function 1. Fill in the following chart outlining the three types of neurons. Neuron type Brief description of function Sensory neuron Carry information to central nervous system (brain and spinal cord) from sensory receptors. Interneuron Integrate sensory information and determine response. Between sensory and motor neurons in neural pathway. Motor neuron Carry information away from central nervous system to an effector (that will carry out response). 2. On the diagram of a neuron below, label the following parts: (a) cell body, (b) dendrites, (c) axon, (d) myelin sheath. Next to each, give a very brief description of its role. Receive signals from other cells. Insulate axon. Speed up transmission of signal down axon. Help in repair of some damaged axons. Branching projections that increase surface area for receiving signals from other cells. Receiving portion. Carries info away from cell body to
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309D S08 HW_3+A - NAME _KEY_ Homework #3 Neuron Structure...

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