1 month

100 years

1 year

10 years

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

muscle cells

liver cells

skin cells

stem cells

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

all of the above

brains

spinal cord

a nerve

prison cells

stem cells

muscle cells

glial cells

nerve

muscle

the brain

wire

proteins

electrical impulses

telegraph

hormonal

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons