150 meters per second

1 foot per second

1 meter per second

100 miles per hour

brains

all of the above

spinal cord

a nerve

the brain

nerve

muscle

wire

1 year

10 years

1 month

100 years

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

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

liver cells

stem cells

skin cells

muscle cells

muscle cells

stem cells

glial cells

prison cells

telegraph

hormonal

electrical impulses

proteins