10 years

1 year

100 years

1 month

the brain

wire

muscle

nerve

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

liver cells

muscle cells

stem cells

skin cells

telegraph

electrical impulses

proteins

hormonal

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

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

they regenerate very quickly

brains

a nerve

spinal cord

all of the above

muscle cells

glial cells

stem cells

prison cells