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