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