muscle

the brain

nerve

wire

proteins

hormonal

electrical impulses

telegraph

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

100 years

10 years

1 year

1 month

all of the above

a nerve

brains

spinal cord

liver cells

muscle cells

skin cells

stem cells

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

prison cells

muscle cells

glial cells

stem cells