5 Written Questions

1. a nerve cell that carries messages from the brain and spinal cord to the muscles
2. a gap between neurons where "messages" cross
3. the part of a neuron that receives messages from other neurons
4. an electrical message passed from neuron to neuron
5. helps you adjust to your external environment

5 Matching Questions

1. parts of a neuron
2. Why are neurons unique
3. white matter
4. neurons
5. Peripheral Nervous System (PNS)

1. a nerve cells that carry impulses between various parts of the body
2. b made up of the neurons outside the brain and the spinal cord
3. c axon, dendrite
4. d they communicate with each other
5. e areas of the nervous system that have myelin sheaths

5 Multiple Choice Questions

1. yes
   1. parts of a neuron
   2. Are neurons replaced when they die
   3. Do neurons have a nucleus, chromosomes and DNA
   4. How many neurons are in the body
2. one
   1. How many neurons are in the body
   2. How many dendrites are in each nerve
   3. How long is an axon
   4. How many axons are in each nerve
3. areas of the central nervous system that do not have myelin sheaths
   1. gray matter
   2. system
   3. white matter
   4. synapse
4. regulates your internal system
   1. What is the main job of the autonomic nervous system
   2. Which kind of neurons does the autonomic nervous system use
   3. autonomic nervous system
   4. What is the main job of the somatic nervous system
5. over 10 billion
   1. Why are neurons unique
   2. How many axons are in each nerve
   3. How many dendrites are in each nerve
   4. How many neurons are in the body

5 True/False Question

1. myelin sheath → an electrical message passed from neuron to neuron
   

   True        False

2. Are neurons replaced when they die → over 10 billion
   

   True        False

3. What are the two parts of the PNS → they communicate with each other
   

   True        False

4. What kind of reflex is photic sneezing → genetic reflex
   

   True        False

5. photic sneezing → a nerve cell that carries messages from the brain and spinal cord to the muscles
   

   True        False