brains

a nerve

spinal cord

all of the above

muscle cells

stem cells

prison cells

glial cells

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

1 year

10 years

100 years

1 month

wire

the brain

nerve

muscle

proteins

electrical impulses

telegraph

hormonal

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

stem cells

skin cells

liver cells

muscle cells