spinal cord

all of the above

brains

a nerve

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

muscle cells

liver cells

skin cells

stem cells

10 years

100 years

1 month

1 year

proteins

telegraph

hormonal

electrical impulses

stem cells

prison cells

glial cells

muscle cells

wire

the brain

muscle

nerve

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

1 foot per second

100 miles per hour

1 meter per second

150 meters per second