muscle

wire

nerve

the brain

prison cells

stem cells

muscle cells

glial cells

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

brains

a nerve

all of the above

spinal cord

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

1 month

1 year

10 years

100 years

skin cells

muscle cells

liver cells

stem cells

proteins

telegraph

hormonal

electrical impulses