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

the brain

nerve

wire

muscle

all of the above

spinal cord

brains

a nerve

stem cells

muscle cells

liver cells

skin cells

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

stem cells

muscle cells

prison cells

glial cells

telegraph

electrical impulses

proteins

hormonal

1 year

10 years

100 years

1 month

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons