spinal cord

all of the above

a nerve

brains

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

the brain

wire

nerve

muscle

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

stem cells

glial cells

muscle cells

prison cells

skin cells

muscle cells

stem cells

liver cells

hormonal

telegraph

proteins

electrical impulses

1 month

100 years

1 year

10 years