they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

a nerve

spinal cord

all of the above

brains

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

prison cells

stem cells

muscle cells

glial cells

hormonal

electrical impulses

proteins

telegraph

1 year

100 years

1 month

10 years

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

skin cells

liver cells

stem cells

muscle cells

nerve

wire

muscle

the brain