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