liver cells

stem cells

skin cells

muscle cells

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

electrical impulses

proteins

telegraph

hormonal

nerve

the brain

wire

muscle

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

1 month

10 years

100 years

1 year

spinal cord

brains

all of the above

a nerve

prison cells

glial cells

stem cells

muscle cells

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body