1 meter per second

1 foot per second

100 miles per hour

150 meters per second

hormonal

electrical impulses

telegraph

proteins

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

skin cells

liver cells

muscle cells

stem cells

wire

muscle

the brain

nerve

prison cells

muscle cells

glial cells

stem cells

spinal cord

all of the above

a nerve

brains

100 years

10 years

1 month

1 year

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons