nerve

wire

the brain

muscle

10 years

1 year

100 years

1 month

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

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

liver cells

stem cells

skin cells

muscle cells

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

telegraph

proteins

electrical impulses

hormonal

muscle cells

prison cells

glial cells

stem cells

all of the above

brains

a nerve

spinal cord