all of the above

spinal cord

brains

a nerve

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

the brain

wire

nerve

muscle

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

muscle cells

stem cells

liver cells

skin cells

proteins

telegraph

hormonal

electrical impulses

10 years

100 years

1 year

1 month

muscle cells

glial cells

stem cells

prison cells