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