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