brains

spinal cord

all of the above

a nerve

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

prison cells

glial cells

stem cells

muscle cells

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

wire

nerve

the brain

muscle

liver cells

stem cells

muscle cells

skin cells

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

10 years

100 years

1 year

1 month

proteins

electrical impulses

telegraph

hormonal