muscle cells

glial cells

prison cells

stem cells

the brain

muscle

nerve

wire

skin cells

muscle cells

stem cells

liver cells

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

hormonal

telegraph

proteins

electrical impulses

spinal cord

brains

a nerve

all of the above

1 month

1 year

10 years

100 years

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons