wire

nerve

muscle

the brain

all of the above

brains

a nerve

spinal cord

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

muscle cells

liver cells

skin cells

stem cells

muscle cells

glial cells

stem cells

prison cells

proteins

telegraph

hormonal

electrical impulses

1 month

100 years

10 years

1 year

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly