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