they regenerate very quickly

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

stem cells

liver cells

skin cells

muscle cells

the brain

nerve

muscle

wire

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

100 years

10 years

1 month

1 year

proteins

electrical impulses

hormonal

telegraph

muscle cells

prison cells

stem cells

glial cells

all of the above

brains

a nerve

spinal cord

150 meters per second

100 miles per hour

1 meter per second

1 foot per second