stem cells

skin cells

muscle cells

liver cells

a nerve

all of the above

spinal cord

brains

muscle cells

prison cells

glial cells

stem cells

nerve

the brain

wire

muscle

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

1 month

100 years

1 year

10 years

telegraph

proteins

hormonal

electrical impulses