bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

wire

muscle

nerve

the brain

electrical impulses

proteins

telegraph

hormonal

stem cells

skin cells

muscle cells

liver cells

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

all of the above

spinal cord

brains

a nerve

prison cells

muscle cells

stem cells

glial cells

10 years

1 year

1 month

100 years

100 miles per hour

150 meters per second

1 foot per second

1 meter per second