telegraph
hormonal
proteins
electrical impulses
liver cells
stem cells
skin cells
muscle cells
brains
all of the above
spinal cord
a nerve
the brain
nerve
muscle
wire
100 years
10 years
1 month
1 year
pyramidal neurons
bipolar neurons
multipolar neurons
Purkinje neurons
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
prison cells
glial cells
they help carry oxygen to different parts of your body
they are very long compared to other cells in the body
they regenerate very quickly
they do not have a nucleus