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