höftbenetpelvis

The pelvis, also known as the pelvic girdle or höftbenet in Swedish, is a bony structure located at the base of the spine to which the legs are attached. It is composed of three main bones: the ilium, ischium, and pubis, which fuse together to form a single structure. The pelvis serves several important functions, including supporting the weight of the upper body when sitting, facilitating movement and balance, and protecting the internal organs and reproductive systems.

The pelvis is divided into two main parts: the pelvic inlet and the pelvic outlet. The pelvic inlet is the upper boundary of the pelvis, while the pelvic outlet is the lower boundary. The shape and size of the pelvis vary between males and females, with the female pelvis generally being wider and shallower to accommodate childbirth.

The pelvis is connected to the spine by the sacrum, a triangular bone that forms the posterior part of the pelvis. The sacrum articulates with the ilium at the sacroiliac joints, which are strong, stable joints that allow for minimal movement. The pelvis is also connected to the femurs, or thigh bones, at the hip joints, which are ball-and-socket joints that allow for a wide range of movement.

In addition to its structural and functional roles, the pelvis is also an important site for the attachment of muscles and ligaments. These structures work together to stabilize the pelvis and facilitate movement of the legs and trunk. The pelvis is also an important site for the storage of fat, particularly in females, where it serves as a source of energy during pregnancy and lactation.