1 month

1 year

100 years

10 years

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

liver cells

muscle cells

stem cells

skin cells

glial cells

muscle cells

stem cells

prison cells

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

they regenerate very quickly

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

the brain

wire

muscle

nerve

proteins

electrical impulses

hormonal

telegraph

all of the above

a nerve

brains

spinal cord