100 years

10 years

1 month

1 year

wire

muscle

the brain

nerve

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

skin cells

liver cells

muscle cells

stem cells

all of the above

brains

spinal cord

a nerve

muscle cells

prison cells

glial cells

stem cells

telegraph

proteins

hormonal

electrical impulses

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons