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