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

all of the above

spinal cord

brains

a nerve

muscle cells

stem cells

glial cells

prison cells

stem cells

muscle cells

liver cells

skin cells

100 years

1 month

1 year

10 years

wire

nerve

the brain

muscle

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

proteins

telegraph

hormonal

electrical impulses

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons