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