1 month

10 years

1 year

100 years

electrical impulses

telegraph

proteins

hormonal

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

nerve

wire

muscle

the brain

stem cells

prison cells

muscle cells

glial cells

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

a nerve

all of the above

spinal cord

brains

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

stem cells

muscle cells

skin cells

liver cells