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

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

all of the above

spinal cord

a nerve

brains

100 years

1 year

1 month

10 years

electrical impulses

hormonal

proteins

telegraph

the brain

muscle

wire

nerve

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

glial cells

muscle cells

stem cells

prison cells

stem cells

liver cells

skin cells

muscle cells