proteins

hormonal

telegraph

electrical impulses

1 month

10 years

1 year

100 years

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

a nerve

all of the above

brains

spinal cord

liver cells

stem cells

skin cells

muscle cells

nerve

the brain

muscle

wire

prison cells

glial cells

stem cells

muscle cells