Which is the largest internal organ in the human body?

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An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although scientists hold different views on what exactly counts as an organ, the most-cited number of organs in the human body stands at 78. These include major functional units like the brain and the heart, as well as much smaller body parts, such as the tongue. (Image credit: Toa55 via Getty Images) Skin wears the crown of the heaviest organ in the human body — however, there's some discrepancy as to how much it actually weighs. Some sources state that adults carry an average 8 pounds (3.6 kilograms) of skin, while other sources say that the skin makes up about 16% of an adult's total body weight, which would suggest that a 170-pound (77-kg) adult's skin would weigh about 27 pounds (12.3 kg), for example. Why does this discrepancy exist? According to a 1949 report in the Journal of Investigative Dermatology, the larger of the two estimates counts the panniculus adiposus — a fatty tissue layer that lies between the top layers of the skin and the underlying muscle — as part of the skin, while the smaller estimate counts this tissue layer as separate. For what it's worth, the authors of the report argue against the inclusion of the panniculus adiposus and therefore conclude that skin makes up only about 6% of an adult's weight. But a modern medical reference text, the Primary Care Noteb...

And that's not all. Researchers also suggested that the newly discovered organ, called the interstitium, might be the largest organ in the body. That's right: The A new study published this week announced the discovery of a previously unknown organ, the interstitium. Getty Images In a study published Tuesday in But how could something so massive go unnoticed for so long? As The Daily Beast explained, the interstitium isn't actually new to doctors — it's just that they previously thought it was simply dense connective tissue. That's because the tiny fluid structures were drained and compacted when the tissues were made into slides, so scientists never saw them — until now.

The largest organ in the human body, the adult liver can weigh between 1.2 - 1.5 kg (2.64 - 3.3 lb) - about one thirty-sixth of the total body weight. Located behind the lower ribs and below the diaphragm, it performs over 100 separate bodily functions and can measure up to 22 cm (8.6 in) long and 10 cm (3.9 in) wide. The liver is also the largest gland in the body. Advertisements Records change on a daily basis and are not immediately published online. For a full list of record titles, please use our Record Application Search. (You will need to register / login for access) Comments below may relate to previous holders of this record.

This system acts as a protective barrier between the external environment and the inside of the body, shielding the internal organs against heat, light, injury and infection. In addition, skin plays an important role in regulating body temperature, preventing water loss, producing vitamin D and detecting sensations caused by mechanical stimuli that make contact with or put pressure on the skin. In an average adult, skin accounts for about 15% of total body weight and covers a surface area of approximately 22 square feet (2 square meters), according to the Institute for Quality and Efficiency in Health Care. That said, some scientists include fewer layers of tissue in this estimate and suggest that the average The skin has three layers, as depicted in this diagram of skin anatomy. (Image credit: Flash Vector via Shutterstock) Human skin is composed of three layers of tissue: the epidermis, dermis and hypodermis. The thickness and density of skin layers vary among individuals, depending on their age, sex and genetic factors. For example, female adults and children typically have thinner skin than male adults in most areas of the body. Environmental influences, such as exposure to sun or certain medications, may also affect skin density, according to StatPearls. Epidermis The epidermis is the top, visible layer of skin. It is further divided into four layers: the stratum basale, stratum spinosum, stratum granulosum and stratum corneum. The thick skin on the palms and soles of...

Some organs belong to more than one organ system. The pancreas, for example, can be considered a part of the digestive system because it secretes enzymes that help the body break down fat, protein, and starch. It is also part of the endocrine system because it produces hormones that help regulate blood sugar. Urinary (Excretory) System The urinary system is made up of the: • Institute for Quality and Efficiency in Health Care. • National Cancer Institute. • National Library of Medicine: MedlinePlus. • MedlinePlus. • Endocrine Society. • National Institute of Diabetes and Digestive and Kidney Diseases. • Breit S, Kupferberg A, Rogler G, Hasler G. Front Psychiatry. 2018;9:44. doi:10.3389/fpsyt.2018.00044 • Endocrine Society. • National Cancer Institute. • National Cancer Institute. • National Cancer Institute. • National Cancer Institute. • Sweeney MD, Zhao Z, Montagne A, Nelson AR, Zlokovic BV. Physiol Rev. 2019;99(1):21-78. doi:10.1152/physrev.00050.2017 • MedlinePlus. • MedlinePlus. • Institute for Quality and Efficiency in Health Care.

The liver is the largest solid organ in the body. It carries out over 500 tasks and plays an essential role in digestion. Its roles include detoxification, protein synthesis, and producing digestive enzymes. The roles of the liver include detoxification, protein synthesis, and the production of chemicals that help digest food. It is part of the digestive system. This article will cover the main roles of the liver, how the liver regenerates, what happens when the liver does not function correctly, and how to keep the liver healthy. Share on Pinterest SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/Getty Images A person’s liver is in the upper right section of the abdomen and sits below the diaphragm. It typically weighs The liver is roughly triangular and consists of two lobes: a larger right lobe and a smaller left lobe. The falciform ligament separates the lobes. This ligament is a band of tissue that keeps the liver anchored to the diaphragm. A layer of fibrous tissue called Glisson’s capsule covers the outside of the liver. The peritoneum, a membrane that forms the lining of the abdominal cavity, then covers this. This helps hold the liver in place and protects it from physical damage. Blood vessels Unlike most organs, the liver has two major sources of blood. The portal vein brings in nutrient-rich blood from the digestive system, and the hepatic artery carries oxygenated blood from the heart. The blood vessels divide into small capillaries, with each ending in a lobule. Lob...

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This system acts as a protective barrier between the external environment and the inside of the body, shielding the internal organs against heat, light, injury and infection. In addition, skin plays an important role in regulating body temperature, preventing water loss, producing vitamin D and detecting sensations caused by mechanical stimuli that make contact with or put pressure on the skin. In an average adult, skin accounts for about 15% of total body weight and covers a surface area of approximately 22 square feet (2 square meters), according to the Institute for Quality and Efficiency in Health Care. That said, some scientists include fewer layers of tissue in this estimate and suggest that the average The skin has three layers, as depicted in this diagram of skin anatomy. (Image credit: Flash Vector via Shutterstock) Human skin is composed of three layers of tissue: the epidermis, dermis and hypodermis. The thickness and density of skin layers vary among individuals, depending on their age, sex and genetic factors. For example, female adults and children typically have thinner skin than male adults in most areas of the body. Environmental influences, such as exposure to sun or certain medications, may also affect skin density, according to StatPearls. Epidermis The epidermis is the top, visible layer of skin. It is further divided into four layers: the stratum basale, stratum spinosum, stratum granulosum and stratum corneum. The thick skin on the palms and soles of...

The largest organ in the human body, the adult liver can weigh between 1.2 - 1.5 kg (2.64 - 3.3 lb) - about one thirty-sixth of the total body weight. Located behind the lower ribs and below the diaphragm, it performs over 100 separate bodily functions and can measure up to 22 cm (8.6 in) long and 10 cm (3.9 in) wide. The liver is also the largest gland in the body. Advertisements Records change on a daily basis and are not immediately published online. For a full list of record titles, please use our Record Application Search. (You will need to register / login for access) Comments below may relate to previous holders of this record.