150 meters per second

1 meter per second

100 miles per hour

1 foot per second

they do not have a nucleus

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

the brain

muscle

nerve

wire

brains

all of the above

a nerve

spinal cord

10 years

1 month

1 year

100 years

glial cells

stem cells

muscle cells

prison cells

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

telegraph

electrical impulses

proteins

hormonal

muscle cells

liver cells

skin cells

stem cells