stem cells
skin cells
muscle cells
liver cells
they regenerate very quickly
they do not have a nucleus
they help carry oxygen to different parts of your body
they are very long compared to other cells in the body
muscle
the brain
nerve
wire
1 year
100 years
1 month
10 years
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.
pyramidal neurons
multipolar neurons
Purkinje neurons
bipolar neurons
proteins
electrical impulses
hormonal
telegraph
glial cells
prison cells
all of the above
brains
spinal cord
a nerve