muscle cells

stem cells

liver cells

skin cells

hormonal

telegraph

electrical impulses

proteins

they regenerate very quickly

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

all of the above

a nerve

brains

spinal cord

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

1 year

10 years

100 years

1 month

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

nerve

wire

muscle

the brain

muscle cells

stem cells

glial cells

prison cells