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

brains

all of the above

a nerve

spinal cord

muscle cells

stem cells

liver cells

skin cells

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

muscle cells

prison cells

glial cells

stem cells

telegraph

electrical impulses

proteins

hormonal

wire

muscle

the brain

nerve

1 year

10 years

100 years

1 month