10 years

1 month

1 year

100 years

hormonal

proteins

telegraph

electrical impulses

wire

nerve

muscle

the brain

stem cells

muscle cells

liver cells

skin cells

spinal cord

brains

a nerve

all of the above

1 meter per second

1 foot per second

150 meters per second

100 miles per hour

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

glial cells

muscle cells

stem cells

prison cells

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus