they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

glial cells

muscle cells

stem cells

prison cells

brains

a nerve

spinal cord

all of the above

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

telegraph

proteins

electrical impulses

hormonal

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

skin cells

muscle cells

liver cells

stem cells

100 years

10 years

1 year

1 month

the brain

muscle

wire

nerve