hormonal

electrical impulses

proteins

telegraph

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

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

they do not have a nucleus

1 year

100 years

10 years

1 month

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

muscle cells

liver cells

stem cells

skin cells

the brain

nerve

wire

muscle

all of the above

spinal cord

brains

a nerve

prison cells

glial cells

muscle cells

stem cells