1 meter per second

1 foot per second

150 meters per second

100 miles per hour

muscle

the brain

wire

nerve

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

stem cells

muscle cells

prison cells

glial cells

electrical impulses

telegraph

proteins

hormonal

stem cells

skin cells

liver cells

muscle cells

spinal cord

a nerve

all of the above

brains

1 year

10 years

100 years

1 month