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