10 years

100 years

1 month

1 year

hormonal

telegraph

proteins

electrical impulses

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

stem cells

prison cells

muscle cells

glial cells

liver cells

skin cells

stem cells

muscle cells

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

the brain

wire

nerve

muscle

a nerve

all of the above

spinal cord

brains