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