the brain

muscle

nerve

wire

stem cells

muscle cells

skin cells

liver cells

10 years

100 years

1 month

1 year

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

a nerve

brains

spinal cord

all of the above

electrical impulses

telegraph

proteins

hormonal

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

glial cells

stem cells

prison cells

muscle cells