muscle cells

skin cells

stem cells

liver cells

1 year

100 years

1 month

10 years

spinal cord

a nerve

all of the above

brains

electrical impulses

proteins

hormonal

telegraph

nerve

the brain

muscle

wire

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

prison cells

muscle cells

glial cells

stem cells