skin cells

muscle cells

stem cells

liver cells

a nerve

spinal cord

brains

all of the above

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

wire

muscle

nerve

the brain

100 years

10 years

1 year

1 month

electrical impulses

telegraph

proteins

hormonal

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

glial cells

stem cells

prison cells

muscle cells