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