stem cells
skin cells
muscle cells
liver cells
10 years
1 year
1 month
100 years
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
spinal cord
brains
all of the above
a nerve
1 foot per second
1 meter per second
150 meters per second
100 miles per hour
telegraph
proteins
hormonal
electrical impulses
True or False: Damage to your nervous system can cause paralysis.
muscle
the brain
nerve
wire
prison cells
glial cells
pyramidal neurons
Purkinje neurons
bipolar neurons
multipolar neurons