hormonal

proteins

telegraph

electrical impulses

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

muscle cells

glial cells

prison cells

stem cells

a nerve

spinal cord

all of the above

brains

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

stem cells

muscle cells

liver cells

skin cells

100 years

1 year

10 years

1 month

muscle

nerve

the brain

wire