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