brains

spinal cord

a nerve

all of the above

muscle cells

prison cells

stem cells

glial cells

skin cells

muscle cells

stem cells

liver cells

electrical impulses

hormonal

telegraph

proteins

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

1 month

10 years

100 years

1 year

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

the brain

nerve

muscle

wire