muscle cells

stem cells

skin cells

liver cells

1 month

100 years

1 year

10 years

all of the above

brains

spinal cord

a nerve

prison cells

glial cells

muscle cells

stem cells

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

hormonal

telegraph

proteins

electrical impulses

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

nerve

muscle

wire

the brain

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body