spinal cord

brains

all of the above

a nerve

the brain

muscle

nerve

wire

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons

100 years

1 month

1 year

10 years

proteins

hormonal

electrical impulses

telegraph

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

skin cells

liver cells

muscle cells

stem cells

muscle cells

glial cells

prison cells

stem cells