a nerve

brains

spinal cord

all of the above

they do not have a nucleus

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

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

proteins

telegraph

hormonal

electrical impulses

1 year

100 years

10 years

1 month

liver cells

stem cells

skin cells

muscle cells

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

nerve

wire

muscle

the brain

stem cells

glial cells

prison cells

muscle cells