Exam 18: Nervous System Cells

What is the major function of neurons?

Which of the following is not true of a three-neuron ipsilateral reflex?

In a contralateral reflex arc, the receptors and effectors are located on opposite sides of the body.

Match each part of the nervous system with its corresponding description. -Sometimes called the "rest-and-repair" division

Regeneration of nerve fibers is impossible, even if the cell body is intact and the fibers have a neurilemma.

Astrocytes attempt to assist the neurons of the CNS in healing and regrowth.

Match each part of the nervous system with its corresponding description. -Consists of all the outgoing pathways

Which of the following is not a function of the central nervous system (CNS)?

Match each part of the nervous system with its corresponding description. -Subdivision that carries information from the CNS to skeletal muscle

Microtubules and microfilaments provide a type of "railway" for the rapid transport of organelles to and from the ends of the neuron.

Rapid succession stimulation of a postsynaptic neuron by a synaptic knob is called an ipsilateral reflex.

If a motor neuron is damaged, it can cause the muscle it innervates to atrophy because of lack of stimulation.

Fascicles are held together by a connective tissue layer called the:

Match each term with its definition or description. -Contains the nucleus and various organelles for the neuron

If a person were in a high-stress, emergency situation, the sympathetic division of the autonomic nervous system would be active.

A lack of which neurotransmitter is associated with Parkinson's disease?

The efferent division of the nervous system consists of mostly sensory pathways.

Match each of the following cell types with its corresponding description. -Helps form the blood-brain barrier

The nervous system consists of the brain, spinal cord, and nerves.

There are differences between the central and peripheral nervous systems concerning the repair of damaged fibers.