multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

hormonal

proteins

electrical impulses

telegraph

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

stem cells

skin cells

liver cells

muscle cells

brains

a nerve

all of the above

spinal cord

glial cells

muscle cells

prison cells

stem cells

the brain

nerve

muscle

wire

10 years

1 year

100 years

1 month

1 foot per second

100 miles per hour

1 meter per second

150 meters per second