1 month

1 year

10 years

100 years

spinal cord

a nerve

all of the above

brains

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

muscle cells

prison cells

glial cells

stem cells

skin cells

muscle cells

liver cells

stem cells

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

electrical impulses

hormonal

telegraph

proteins

nerve

the brain

muscle

wire

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly