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