hormonal

electrical impulses

telegraph

proteins

1 month

10 years

100 years

1 year

stem cells

glial cells

muscle cells

prison cells

all of the above

a nerve

spinal cord

brains

stem cells

liver cells

skin cells

muscle cells

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

wire

nerve

the brain

muscle

1 meter per second

1 foot per second

150 meters per second

100 miles per hour

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