muscle

wire

nerve

the brain

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

10 years

100 years

1 year

1 month

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

hormonal

proteins

telegraph

electrical impulses

prison cells

muscle cells

stem cells

glial cells

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

all of the above

spinal cord

a nerve

brains

liver cells

muscle cells

skin cells

stem cells