100 years

10 years

1 year

1 month

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

glial cells

stem cells

muscle cells

prison cells

proteins

telegraph

electrical impulses

hormonal

muscle cells

stem cells

skin cells

liver cells

the brain

nerve

muscle

wire

all of the above

a nerve

brains

spinal cord

100 miles per hour

150 meters per second

1 meter per second

1 foot per second