pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

telegraph

proteins

electrical impulses

hormonal

1 month

100 years

1 year

10 years

spinal cord

brains

all of the above

a nerve

wire

the brain

muscle

nerve

prison cells

muscle cells

stem cells

glial cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

liver cells

stem cells

muscle cells

skin cells

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus