liver cells

skin cells

muscle cells

stem cells

1 year

100 years

1 month

10 years

nerve

wire

muscle

the brain

brains

all of the above

spinal cord

a nerve

muscle cells

glial cells

stem cells

prison cells

electrical impulses

proteins

hormonal

telegraph

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

1 meter per second

150 meters per second

1 foot per second

100 miles per hour