brains

all of the above

spinal cord

a nerve

prison cells

muscle cells

glial cells

stem cells

telegraph

electrical impulses

hormonal

proteins

skin cells

stem cells

muscle cells

liver cells

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

muscle

the brain

wire

nerve

1 year

10 years

100 years

1 month