pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

spinal cord

brains

all of the above

a nerve

nerve

wire

muscle

the brain

10 years

100 years

1 month

1 year

telegraph

proteins

electrical impulses

hormonal

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

stem cells

skin cells

liver cells

muscle cells

glial cells

muscle cells

prison cells

stem cells

150 meters per second

100 miles per hour

1 foot per second

1 meter per second