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