Nervous System #1

Which part of a neuron carries information toward the cell body?

• synaptic vesicle

• axon

• dendrite

• reuptake pump

In the PNS which neuroglia cell forms the myelin sheath?

• Astrocyte

• Microglia

• Oligodendrocyte

• Schwann cell

The axon of one neuron makes a direct physical attachment to the dendrite of the next neuron.

• True

• False

The axon of one neuron makes a direct physical attachment to the dendrite of the next neuron.

Which division of the nervous system is made up of the brain and spinal cord?

• autonomic

• CNS

• PNS

• Somatic

Neurons for measuring pressure in blood vessels are part of what division of the nervous system?

• motor, autonomic

• sensory, autonomic

• motor, somatic

• sensory, somatic

What is the “fight or flight” division of the nervous system?

• parasympathetic

• somatic

• sympathetic

• synaptic

In a resting neuron, which of the following is true about the inside of the cell?

• It has a negative charge and has a high concentration of Potassium

• It has a negative charge and has a high concentration of Sodium

• It has a positive charge and has a high concentration of Potassium

• It has a positive charge and has a high concentration of Sodium

The synapse is the area that occurs

• between the cell body and axon

• between dendrites and cell bodies

• between two neurons

• between myelin

The function of the myelin sheath is to speed up the action potential traveling down a nerve.

• True

• False