•2 heads
•2 completely separate spinal cords
•2 spines with ribs bridging the two columns
•2 arms (originally 3, but rudimentary central arm was surgically removed, leaving central shoulder blade in place)
•1 broad ribcage, with surgery to correct scoliosis and expand the pleural cavities
•2 breasts
•2 highly fused sternums, traces of bridging ribs
•4 lungs (medial lungs moderately fused, not involving Brittany's upper right lobe); three pleural cavities
•1 diaphragm with well-coordinated involuntary breathing, slight central defect
•2 hearts in a shared circulatory system (nutrition, respiration, medicine taken by either affects both)
•2 stomachs
•2 gallbladders
•1 liver, enlarged and elongated right lobe
•Y-shaped small intestine which experiences a slightly spastic double peristalsis at the juncture
•1 large intestine with one colon
•2 left kidneys, 1 right kidney
•1 bladder
•1 set of reproductive organs
•2 separate half-sacrums, which converge distally
•1 slightly broad pelvis
•2 legs