100 years

1 month

1 year

10 years

spinal cord

a nerve

all of the above

brains

muscle

nerve

the brain

wire

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

proteins

electrical impulses

hormonal

telegraph

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

skin cells

stem cells

liver cells

muscle cells

stem cells

prison cells

glial cells

muscle cells

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons