Abigail & Brittany, One Body, Two Souls, TWO HEADS

 
Abigail “Abby” Loraine Hensel and Brittany “Britty” Lee Hensel (born March 7, 1990) are highly symmetric dicephalic parapagus conjoined twins, and further, tribrachius, bipedus. They have two spines and separate half-sacrums, which converge distally within a slightly broad pelvis. Each controls and senses her corresponding arm and leg; a third, rudimentary central arm was amputated in infancy.

Organ distribution

Most of Abigail’s and Brittany’s shared organs are located at or below the level of the navel.^[2]

• 2 heads


• 2 completely separate spinal cords


• 2 vertebral columns with ribs bridging the two columns; their coccyxes merge.


• 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


• 3 kidneys: 2 left, 1 right


• 1 bladder


• 1 set of reproductive organs


• 2 separate half-sacrums, which converge distally


• 1 slightly broad pelvis


• 2 legs