1. Neurons

Which is the correct sequence in the transmission of a neural impulse?

• axon, dendrite, cell body, synapse
• dendrite, axon, cell body, synapse
• synapse, axon, dendrite, cell body
• dendrite, cell body, axon, synapse

Multiple sclerosis is an autoimmune disease in which the body's own immune system destroys the _____________ of the nerve axons. 

• Myelin
• Dendrites
• Axon Terminal
• Nodes of Ranvier

An axon conducts nerve impulses _________ the cell body.

• away from
• toward
• both toward and away
• around, bypassing

The brain's supporting cells are called: 

• glial cells
• mitochondria
• neurons
• nuclei

Neurons that travel toward the central nervous system are called

• afferent neurons
• efferent neurons
• exit neurons
• CNS neurons

Impulses that travel down a myelinated neuron move faster than if it was unmyelinated.

• True
• False
• I'm not sure

Which of the following are parts of neurons?

• brain, spinal cord, and vertebral column
• dendrite, axon, and cell body
• sensory and motor dendrites
• dendrite, medulla and myelin sheath

The gap that a message has to cross to get from one neuron to the other is called the _____

• synapse
• dendrite
• axon
• synaptic cleft

What part of the neuron is myelinated?

• Cell Body
• Axon
• Synapse
• Dendrite

W

• Axon Terminal Button
• Neurotransmitters
• Dendrite
• Synapse