all of the above

brains

spinal cord

a nerve

muscle cells

liver cells

skin cells

stem cells

muscle

wire

nerve

the brain

telegraph

proteins

hormonal

electrical impulses

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

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

glial cells

prison cells

muscle cells

stem cells

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons