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

they do not have a nucleus

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

all of the above

spinal cord

a nerve

brains

muscle

the brain

nerve

wire

stem cells

glial cells

muscle cells

prison cells

electrical impulses

proteins

hormonal

telegraph

100 years

1 month

1 year

10 years

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

liver cells

stem cells

skin cells

muscle cells