Circulatory System
The circulatory system of the Tasmanian devil and other marsupials is the same as any mammal or human. It has capillaries in the lungs and body tissue where gas is exchanged. The circulatory system also includes different blood vessels and the heart.
Reproductive System
The reproductive system in marsupials is different than that of a human or other mammal. In marsupials, the males often have two-pronged penises. While the females have three vaginas. One of the vaginas carries sperm to the two uteruses, another carries the joeys during birth. More information on the reproductive system in Biology~Reproduction.
Digestive System
The digestive system is similar to that of a non-marsupial. Although, the setup is different. After the food enters the mouth and is broken down with amylase the food then travels through the Oesophagus, through the cardio-gastric gland and into the stomach. The digested food then travels through the small intestine where starches, proteins, and carbohydrates are broken down. Then the food travels through the caecum, proximal colon, and the distal colon to the anus where the digested food then leaves the body.
The olfactory system is used for sense of smell in mammals. Tasmanian devils use their olfactory system to detect ques in environments that allow them to find and determine if there is food. Just like other mammals such as dogs or cats. Although, the olfactory system looks different in marsupials than it does other animals.
References
Simpson, S. J., Flecknoe, S. J., Clugston, R. D., Greer, J. J., Hooper, S. B., & Frappell, P. B. (2011). Structural and Functional Development of the Respiratory System in a Newborn Marsupial with Cutaneous Gas Exchange. Physiological and Biochemical Zoology, 84(6), 634–649. https://doi.org/10.1086/662557
Frey, R., Reby, D., Fritsch, G., & Charlton, B. (2018, February 19). The remarkable vocal anatomy of the koala (Phascolarctos cinereus): insights into low-frequency sound production in a marsupial species. Onlinelibrary.Wiley. Retrieved July 31, 2022, from https://onlinelibrary.wiley.com/doi/full/10.1111/joa.12770
Yong, E. (2021, May 4). Kangaroos Have Three Vaginas. Nationalgeographic. Retrieved July 31, 2022, from https://www.nationalgeographic.com/science/article/kangaroos-have-three-vaginas?loggedin=true