brains

all of the above

a nerve

spinal cord

the brain

muscle

nerve

wire

100 years

1 month

10 years

1 year

hormonal

electrical impulses

telegraph

proteins

stem cells

muscle cells

skin cells

liver cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

stem cells

prison cells

muscle cells

glial cells

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons