10 years

1 year

100 years

1 month

glial cells

stem cells

muscle cells

prison cells

stem cells

skin cells

liver cells

muscle cells

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

nerve

the brain

wire

muscle

telegraph

electrical impulses

proteins

hormonal

brains

spinal cord

a nerve

all of the above

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

1 meter per second

1 foot per second

150 meters per second

100 miles per hour