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