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