brains

all of the above

spinal cord

a nerve

1 month

10 years

100 years

1 year

the brain

wire

muscle

nerve

they regenerate very quickly

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

prison cells

glial cells

stem cells

muscle cells

skin cells

stem cells

muscle cells

liver cells

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

proteins

hormonal

electrical impulses

telegraph