spinal cord

all of the above

brains

a nerve

nerve

muscle

the brain

wire

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

glial cells

stem cells

prison cells

muscle cells

1 meter per second

100 miles per hour

150 meters per second

1 foot per second

hormonal

proteins

telegraph

electrical impulses

skin cells

stem cells

liver cells

muscle cells

1 year

10 years

1 month

100 years