liver cells

muscle cells

skin cells

stem cells

brains

spinal cord

all of the above

a nerve

prison cells

stem cells

glial cells

muscle cells

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

1 year

1 month

100 years

10 years

proteins

hormonal

electrical impulses

telegraph

nerve

wire

muscle

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 meter per second

100 miles per hour

1 foot per second

150 meters per second