Synaptic transmission

During an action potential, the inside of the cell becomes negatively charges for a second

• True
• False

Each neuron is separated from the next by a gap called the syntax

• True 
• False 

Although there are 3 different types, all neurons share the same basic structure

• True 
• False

Neurons vary in size from a millimeter to a meter long 

• True 
• False

During synaptic transmission, neurotransmitters are released from syntactic ventricles 

• True 
• False 

Sensory neurons 

• Carry messages from the CNS to effectors 
• Carry messages from sensory to motor neurons 
•  Are efferent 
• Carry messages to the brain and spinal cord 

Relay neurons are found in 

• The brain and the spine
• Just the spine 
•  Just the brain 
• The eyes, ears, tongue and skin

Excitation 

• Has no effect on the neighboring neuron 
• Makes it less likely the neighboring neuron will fire 
• Bypasses the neighboring neuron
• Makes it more likely the neighboring neuron will fire 

The Myelin Sheath 

• Includes the nucleus
• Speeds up the transmission of nerve impulses down the neuron
• Carries nerve impulses away from the cell body
• Sends impulses to next neuron across the synapse 

The nucleus is 

• in the cell body 
• in the dendrites 
• in the axon 
• in the nodes of ranvier