skin cells

liver cells

muscle cells

stem cells

a nerve

all of the above

spinal cord

brains

muscle cells

prison cells

stem cells

glial cells

they do not have a nucleus

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

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

proteins

telegraph

hormonal

electrical impulses

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

nerve

wire

the brain

muscle

100 years

1 month

10 years

1 year