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