Internal Organs in the Human Body Infographic: https://grapact.com/internal-organs-in-the-human-body/

https://www.medicalnewstoday.com/articles/organs-in-the-body#vital-organs (1-9)

https://bio.libretexts.org/Bookshelves/Human_Biology/Book%3A_Human_Biology_(Wakim_and_Grewal)/10%3A_Introduction_to_the_Human_Body/10.4%3A_Human_Organs_and_Organ_Systems (1-9)

https://www.nhsinform.scot/illnesses-and-conditions/heart-and-blood-vessels/about-the-heart/understanding-how-your-heart-functions (2)

https://www.webmd.com/heart/heart-cardiac-output (2)

https://columbiasurgery.org/liver/liver-and-its-functions (4)

https://medlineplus.gov/ency/article/002237.htm (4)

https://www.nhs.uk/Livewell/Kidneyhealth/Documents/kidney%20guide.pdf (5)

https://www.kidney.org/blog/ask-doctor/can-person-live-without-both-their-kidneys (5)

https://www.verywellhealth.com/gallbladder-anatomy-4788045 (6)

https://columbiasurgery.org/pancreas/pancreas-and-its-functions (6)

https://www.medicalnewstoday.com/articles/10011 (6)

https://my.clevelandclinic.org/health/articles/7041-the-structure-and-function-of-the-digestive-system (7)

https://www.cancer.ca/en/cancer-information/cancer-type/stomach/stomach-cancer/the-stomach/?region=nb (4), (7-9)

https://www.ncbi.nlm.nih.gov/books/NBK279303/ (8-9)

https://training.seer.cancer.gov/anatomy/digestive/regions/intestine.html (8-9)