proteins
electrical impulses
telegraph
hormonal
all of the above
spinal cord
brains
a nerve
muscle
nerve
wire
the brain
skin cells
stem cells
muscle cells
liver cells
150 meters per second
1 meter per second
1 foot per second
100 miles per hour
they regenerate very quickly
they help carry oxygen to different parts of your body
they are very long compared to other cells in the body
they do not have a nucleus
glial cells
prison cells
Purkinje neurons
multipolar neurons
bipolar neurons
pyramidal neurons
True or False: Damage to your nervous system can cause paralysis.
10 years
100 years
1 month
1 year