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