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