skin cells

stem cells

liver cells

muscle cells

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

proteins

electrical impulses

hormonal

telegraph

spinal cord

all of the above

a nerve

brains

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

muscle

wire

nerve

the brain

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

prison cells

glial cells

stem cells

muscle cells

1 year

10 years

100 years

1 month