proteins
electrical impulses
hormonal
telegraph
150 meters per second
1 foot per second
100 miles per hour
1 meter per second
spinal cord
brains
a nerve
all of the above
prison cells
stem cells
muscle cells
glial cells
skin cells
liver cells
1 month
100 years
1 year
10 years
bipolar neurons
Purkinje neurons
multipolar neurons
pyramidal 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.