nerve

muscle

the brain

wire

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

they do not have a nucleus

electrical impulses

hormonal

telegraph

proteins

prison cells

stem cells

muscle cells

glial cells

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

a nerve

brains

spinal cord

all of the above

liver cells

muscle cells

stem cells

skin cells

100 years

1 year

10 years

1 month