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