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