liver cells

stem cells

muscle cells

skin cells

hormonal

proteins

telegraph

electrical impulses

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

10 years

1 month

1 year

100 years

wire

nerve

the brain

muscle

spinal cord

brains

all of the above

a nerve

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

prison cells

muscle cells

glial cells

stem cells