multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

proteins

hormonal

electrical impulses

telegraph

stem cells

skin cells

muscle cells

liver cells

nerve

the brain

wire

muscle

1 month

1 year

100 years

10 years

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

muscle cells

prison cells

glial cells

stem cells

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

a nerve

brains

spinal cord

all of the above