stem cells

muscle cells

glial 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

nerve

the brain

muscle

wire

brains

all of the above

a nerve

spinal cord

10 years

1 year

1 month

100 years

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

telegraph

hormonal

electrical impulses

proteins

stem cells

liver cells

muscle cells

skin cells

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons