muscle cells

glial cells

stem cells

prison cells

muscle cells

liver cells

skin cells

stem cells

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

wire

nerve

the brain

muscle

hormonal

telegraph

proteins

electrical impulses

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

10 years

100 years

1 month

1 year

brains

spinal cord

all of the above

a nerve

100 miles per hour

1 foot per second

1 meter per second

150 meters per second