spinal cord

a nerve

all of the above

brains

nerve

the brain

muscle

wire

liver cells

stem cells

muscle cells

skin cells

10 years

1 month

1 year

100 years

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

prison cells

muscle cells

stem cells

glial cells

telegraph

hormonal

electrical impulses

proteins

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

1 foot per second

100 miles per hour

1 meter per second

150 meters per second