spinal cord

all of the above

brains

a nerve

skin cells

liver cells

muscle cells

stem cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

100 years

1 month

1 year

10 years

glial cells

muscle cells

stem cells

prison cells

electrical impulses

telegraph

hormonal

proteins

wire

nerve

the brain

muscle

150 meters per second

1 meter per second

1 foot per second

100 miles per hour