a nerve

all of the above

brains

spinal cord

wire

muscle

the brain

nerve

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons

stem cells

liver cells

muscle cells

skin cells

10 years

100 years

1 year

1 month

hormonal

telegraph

electrical impulses

proteins

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

prison cells

stem cells

glial cells

muscle cells