1 year

10 years

1 month

100 years

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

proteins

telegraph

electrical impulses

hormonal

muscle cells

skin cells

stem cells

liver cells

stem cells

glial cells

prison cells

muscle cells

brains

a nerve

all of the above

spinal cord

wire

nerve

muscle

the brain

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons