skin cells

liver cells

muscle cells

stem cells

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

telegraph

hormonal

electrical impulses

proteins

100 years

1 month

10 years

1 year

muscle cells

stem cells

prison cells

glial cells

muscle

the brain

wire

nerve

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

a nerve

all of the above

brains

spinal cord