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