Nervous System

The nervous system is made up of two principal divisions, the ___.

• Central and sympathetic
• Sympathetic and parasympathetic
• Peripheral and central
• Peripheral and autonomic

Nerve cells and supporting cells are found in the nervous system. These are actually named ___.

• Motor and sensory neurons
• Neurons and glia cells
• Glia cells and astrocytes
• None of the above

Multiple sclerosis is ___.

• A disorder of the astrocytes
• A myelin disorder
• Most common in men from ages 40 to 60
• Both a and b above

Multiple neurofibromatosis is ___.

• The general term of tumors of the nervous system
• A benign tumor appearing in the Schwann cells
• An inherited disease
• Both b and c above

The long narrow part of the neuron that carries impulses to the neuron cell body is the ___.

• Dendrite
• Axon
• Neurilemma
• Nodes of Ranvier

The types of neurons that carry impulses to the brain and spinal cord are called ___.

• Motor neurons
• Sensory neurons
• input neurons
• receiver neurons

The types of neurons that carry impulses away from the brain and spinal cord are called ___.

• Motor neurons
• Sensory neurons
• input neurons
• receiver neurons

Parkinson disease ___.

• Results from a deficiency of dopamine
• Results from a deficiency of acetylcholine
• Can be treated with injections of dopamine
• Both a and c above

The term hemiplegia means paralysis of ___.

• Both legs
• All four extremities
• One whole side of the body
• Both arms

Produce myelin for the cells of the brain and spinal cord

• Schwann cells
• Microglia
• Astrocytes
• Oligodendrocytes