spinal cord

a nerve

all of the above

brains

100 years

1 year

1 month

10 years

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

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

skin cells

stem cells

liver cells

muscle cells

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

the brain

wire

muscle

nerve

electrical impulses

telegraph

hormonal

proteins

stem cells

prison cells

muscle cells

glial cells