100 years

1 year

10 years

1 month

spinal cord

a nerve

brains

all of the above

glial cells

stem cells

muscle cells

prison 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

proteins

telegraph

electrical impulses

hormonal

muscle

nerve

wire

the brain

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

skin cells

stem cells

liver cells

muscle cells