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