stem cells

muscle cells

skin cells

liver cells

hormonal

electrical impulses

proteins

telegraph

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

muscle

the brain

nerve

wire

1 month

100 years

10 years

1 year

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

brains

spinal cord

a nerve

all of the above

muscle cells

glial cells

prison cells

stem cells

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