they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

muscle cells

glial cells

stem cells

prison cells

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

1 month

100 years

1 year

10 years

all of the above

a nerve

brains

spinal cord

the brain

wire

nerve

muscle

skin cells

liver cells

stem cells

muscle cells

proteins

telegraph

electrical impulses

hormonal