multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

a nerve

all of the above

spinal cord

brains

hormonal

electrical impulses

proteins

telegraph

10 years

1 year

1 month

100 years

the brain

nerve

wire

muscle

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

muscle cells

prison cells

glial cells

stem cells

skin cells

muscle cells

stem cells

liver cells

1 meter per second

100 miles per hour

1 foot per second

150 meters per second