they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

a nerve

all of the above

spinal cord

brains

1 month

100 years

1 year

10 years

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

proteins

hormonal

telegraph

electrical impulses

stem cells

liver cells

skin cells

muscle cells

the brain

muscle

wire

nerve

prison cells

muscle cells

stem cells

glial cells