all of the above

spinal cord

a nerve

brains

stem cells

muscle cells

prison cells

glial cells

hormonal

telegraph

electrical impulses

proteins

wire

muscle

nerve

the brain

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

10 years

1 month

1 year

100 years

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

stem cells

skin cells

muscle cells

liver cells

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons