telegraph
proteins
electrical impulses
hormonal
1 year
100 years
10 years
1 month
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 are very long compared to other cells in the body
they do not have a nucleus
bipolar neurons
multipolar neurons
Purkinje neurons
pyramidal neurons
spinal cord
a nerve
brains
all of the above
muscle
wire
nerve
the brain
1 foot per second
1 meter per second
100 miles per hour
150 meters per second
muscle cells
glial cells
stem cells
prison cells
skin cells
liver cells