muscle cells

glial cells

stem cells

prison cells

nerve

wire

the brain

muscle

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

spinal cord

all of the above

a nerve

brains

they regenerate very quickly

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

electrical impulses

proteins

hormonal

telegraph

1 year

10 years

1 month

100 years

muscle cells

stem cells

liver cells

skin cells