they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

spinal cord

all of the above

brains

a nerve

1 year

10 years

100 years

1 month

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

electrical impulses

hormonal

telegraph

proteins

muscle cells

stem cells

liver cells

skin cells

glial cells

stem cells

prison cells

muscle cells

muscle

nerve

wire

the brain

1 foot per second

100 miles per hour

1 meter per second

150 meters per second