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

they do not have a nucleus

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

all of the above

brains

a nerve

spinal cord

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

muscle cells

skin cells

stem cells

liver cells

stem cells

muscle cells

prison cells

glial cells

1 year

100 years

10 years

1 month

the brain

muscle

nerve

wire

hormonal

telegraph

electrical impulses

proteins