150 meters per second

1 foot per second

1 meter per second

100 miles per hour

skin cells

liver cells

muscle cells

stem cells

glial cells

muscle cells

stem cells

prison cells

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

wire

the brain

nerve

muscle

1 month

10 years

1 year

100 years

brains

all of the above

spinal cord

a nerve

hormonal

proteins

electrical impulses

telegraph

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons