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