spinal cord

brains

all of the above

a nerve

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

muscle

nerve

wire

the brain

proteins

hormonal

electrical impulses

telegraph

liver cells

muscle cells

stem cells

skin cells

glial cells

stem cells

prison cells

muscle cells

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

100 years

1 year

1 month

10 years