they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

brains

all of the above

a nerve

spinal cord

1 year

100 years

10 years

1 month

skin cells

liver cells

stem cells

muscle cells

hormonal

proteins

electrical impulses

telegraph

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

stem cells

muscle cells

glial cells

prison cells

nerve

muscle

the brain

wire