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