muscle

nerve

wire

the brain

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

1 year

10 years

100 years

1 month

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

skin cells

stem cells

muscle cells

liver cells

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

stem cells

glial cells

muscle cells

prison cells

proteins

hormonal

telegraph

electrical impulses

all of the above

spinal cord

a nerve

brains