a nerve

brains

all of the above

spinal cord

electrical impulses

proteins

hormonal

telegraph

stem cells

glial cells

muscle cells

prison cells

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

nerve

the brain

muscle

wire

stem cells

liver cells

muscle cells

skin cells

10 years

1 month

1 year

100 years