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