skin cells

liver cells

stem cells

muscle cells

brains

spinal cord

all of the above

a nerve

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

100 years

1 month

1 year

10 years

hormonal

electrical impulses

proteins

telegraph

muscle cells

glial cells

stem cells

prison cells

muscle

the brain

wire

nerve

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons