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