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Latest revision as of 13:23, 18 March 2025
Trunk may refer to the main structural part of the human body that extends from the neck to the limbs. It is also known as the torso and includes the chest, abdomen, and pelvis. The trunk houses many of the vital organs and is a crucial part of the body's structure and function.
Anatomy of the Trunk[edit]
The trunk is divided into two main sections: the thorax (or chest) and the abdomen. The thorax is further divided into the upper and lower thorax, while the abdomen is divided into the upper and lower abdomen.
Thorax[edit]
The thorax is the upper part of the trunk, located between the neck and the abdomen. It is enclosed by the rib cage and the diaphragm, and it contains the heart and lungs, which are protected by the rib cage.
Upper Thorax[edit]
The upper thorax contains the heart and the lungs. The heart is responsible for pumping blood throughout the body, while the lungs are responsible for oxygenating the blood and removing carbon dioxide.
Lower Thorax[edit]
The lower thorax contains the diaphragm, a muscle that plays a crucial role in breathing. It contracts and relaxes to allow air to enter and exit the lungs.
Abdomen[edit]
The abdomen is the part of the trunk that is located between the thorax and the pelvis. It contains many vital organs, including the stomach, liver, gallbladder, spleen, pancreas, and intestines.
Upper Abdomen[edit]
The upper abdomen contains the stomach, liver, gallbladder, and spleen. These organs play crucial roles in digestion and the body's immune system.
Lower Abdomen[edit]
The lower abdomen contains the pancreas, small intestine, and large intestine. These organs are responsible for further digestion and absorption of nutrients, as well as the elimination of waste.
Functions of the Trunk[edit]
The trunk plays several crucial roles in the human body. It houses many of the vital organs, provides structure and support for the body, and is involved in many bodily functions, including digestion, respiration, and circulation.
