liver cells

skin cells

stem cells

muscle cells

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

hormonal

electrical impulses

proteins

telegraph

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

10 years

100 years

1 month

1 year

glial cells

stem cells

muscle cells

prison cells

nerve

wire

muscle

the brain

spinal cord

brains

all of the above

a nerve