muscle cells

stem cells

liver cells

skin cells

proteins

electrical impulses

telegraph

hormonal

all of the above

brains

a nerve

spinal cord

prison cells

muscle cells

glial cells

stem cells

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

muscle

the brain

nerve

wire

1 month

100 years

10 years

1 year

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

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