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