skin cells

muscle cells

liver cells

stem cells

telegraph

hormonal

proteins

electrical impulses

stem cells

glial cells

prison cells

muscle cells

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

nerve

the brain

wire

muscle

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

1 year

100 years

1 month

10 years

spinal cord

all of the above

a nerve

brains