What is "trunk"?

The trunk refers to the central part of the body between the neck and the pelvis, encompassing the chest, abdomen, and back. It serves as a foundational structure that houses and protects vital organs such as the heart, lungs, liver, stomach, and intestines. The trunk plays a crucial role in supporting the body's posture, balance, and movement. It also contains various muscles, including the core muscles, which provide stability and assist in activities such as bending, twisting, and lifting. The trunk is integral to overall bodily function and serves as a connection point for the upper and lower extremities, facilitating coordinated movement and physical performance.