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