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