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