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