Simulation shows how conjoined twins' body works as they're seen with a newborn baby

A simulation has revealed how the body of conjoined twins Abby and Brittany Hensel works.

Born in March 1990 in the US state of Minnesota, sisters Abby and Brittany are known for being dicephalic parapagus twins, an extremely rare form of conjoined twinning where the siblings have separate heads but share one body.

The Hensel sisters' condition has been featured heavily in the media over the years, with the women appearing on The Oprah Winfrey Show, The Learning Channel, and being interviewed by LIFE magazine while growing up.

They were also the stars of their own reality series, Abby & Brittany, which aired on TLC in 2012.

Now 35 and working as teachers in a local elementary school, the sisters' lives have garnered public attention once again after Abby tied the knot with Josh Bowling in 2021, and more recently, after they were spotted with a newborn baby.

Abby and Brittany have yet to confirm who the newborn belongs to explicitly; however, internet users have been going wild with speculation over the topic.

The news has also sparked renewed interest in how the siblings' bodies work, with a simulation shared online providing a visual representation of the bodies of a set of twins with dicephalic parapagus.

In the clip, the sisters' body is described as a 'remarkable blend of shared and individual organs and tissues'.

As well as separate heads, Abby and Brittany also have individual spinal cords, hearts and stomachs, and each twin has a set of lungs, which are partially fused.

When it comes to controlling their arms and legs, Abby is in charge of the right section of the body, while Brittany has control over the left.

The twins can coordinate each side of their body to perform tasks such as driving, walking, or using a computer.

As they are completely joined at the pelvis, the twins share a single small and large intestine, as well as bladder and reproductive system, all of which function for both siblings.

More interestingly, the twins are believed to be able to sense each other's stomach pain, so Brittany would know if Abby were to have an upset stomach, and vice versa.

The sisters also have three kidneys, one on Abby's side and two on Brittany's side, allowing for efficient 'filtration and waste removal for the women's urinary system.

Abby and Brittany have also shared the clip on their joint TikTok account, therefore confirming the description as being pretty accurate.

Meanwhile, the twins' mother has previously touched on whether or not her daughters would be able to become mothers themselves, explaining in a previous documentary, Joined For Life, that it was theoretically possible.

"That is probably something that could work because those organs do work for them," she said at the time, to which Brittany confirmed: "Yeah, we're going to be moms."