spinal cord
a nerve
brains
all of the above
the brain
nerve
wire
muscle
150 meters per second
1 meter per second
1 foot per second
100 miles per hour
10 years
1 year
100 years
1 month
muscle cells
skin cells
stem cells
liver cells
Purkinje neurons
bipolar neurons
pyramidal neurons
multipolar neurons
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
telegraph
proteins
hormonal
electrical impulses
prison cells
glial cells
True or False: Damage to your nervous system can cause paralysis.