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Nervous System

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Task 211.4.4-01-05, 07-09, 11

Nervous System

Organization of Nerve Tissue Lab

Exercise 1: The Multipolar Neuron

A. What is the function of a neuron?

Neurons carry and transmit electrical impulses generated by both internal and external stimuli.

B. What is the difference between a neuron and a nerve?

Neurons are the cells that exchange messages from the internal and external environments. Nerves consist of many neurons that transmit different signals to the brain. They form structural and functional units of the nervous system made up of neurons.

C. What gives a multipolar neuron its name?

It is named multipolar because of the multiple branches, processes, and extensions that stem off the cell bodies.

D. What are the functions of the dendrites and axons?

Dendrites receive incoming signals for the nerve cell. Axons carry outgoing signals of the cells to other cells in the body.

Exercise 2: Structures of selected neurons

A. Which slide contained bipolar neurons?

The pyramidal cell slide.

B. Which slide contained unipolar neurons?

The dorsal root ganglion slide.

C. What was unique about the dorsal root ganglion compared to the other two slides?

The dorsal root ganglion was more round in shape compared to the perkinje and pyramidal cell slides. The nissle substance, nucleus, and satellite cells were visible.

Exercise 3: The Neuroglia and Support Cells

|Cell |Function |Location (CNS or PNS) |
|Neuralgia |Support the neurons, allow nutrients to enter the neuron |CNS |

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