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