brains

a nerve

spinal cord

all of the above

wire

muscle

nerve

the brain

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

stem cells

muscle cells

prison cells

glial cells

stem cells

liver cells

muscle cells

skin cells

10 years

1 month

100 years

1 year

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

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

proteins

hormonal

electrical impulses

telegraph