electrical impulses

proteins

hormonal

telegraph

muscle cells

glial cells

stem cells

prison cells

the brain

wire

nerve

muscle

a nerve

spinal cord

all of the above

brains

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

liver cells

skin cells

stem cells

muscle cells

1 year

100 years

10 years

1 month

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons