muscle

wire

nerve

the brain

proteins

telegraph

electrical impulses

hormonal

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

1 year

100 years

10 years

1 month

glial cells

prison cells

muscle cells

stem cells

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

brains

a nerve

spinal cord

all of the above

muscle cells

skin cells

stem cells

liver cells