all of the above

brains

spinal cord

a nerve

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

nerve

muscle

the brain

wire

electrical impulses

proteins

hormonal

telegraph

muscle cells

prison cells

stem cells

glial cells

stem cells

muscle cells

skin cells

liver cells

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

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

1 year

100 years

1 month

10 years