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Anatomy of the Pelvis

The pelvis is a complex bone structure that consists of four bones: the scapula, pubic bone, iliac crest, and sacrum. It supports the upper body when sitting, transfers weight to the lower limbs when standing, and serves as an attachment point for trunk muscles. The internal pelvic organs are protected within the pelvis. In its anatomical position, the pelvis is angled anteriorly. The anterior superior iliac spines lie in the same vertical plane as pubic tubercles, and the sacrum faces forward.

Anatomy of the pelvis

The anatomy of the pelvis is very important in obstetrics, as it provides a framework for more detailed anatomy. A pelvis is a bony girdle with a central canal. The pelvic structure is strong enough to transfer body weight, but it must have a large enough opening for the term fetus to be born. Here are some key landmarks to learn about the pelvic anatomy.

There are four bones that make up the pelvis. The sacrum is wedge-shaped and fits between the innominate bones posteriorly. The coccyx is a small bone attached to the underside of the sacrum. The bones of the pelvis are held together by ligaments and muscles. They open superiorly into the abdominal cavity. The sacrococcygeal joint and pelvic floor close the inlet and outlet. The inferior abdominal organs are located in the greater pelvis.

Structure

The pelvis is a bony structure located in the lower abdomen and between the sacrum and the femur. The pelvis contains several important bones, including the sacrum, ilium, and pubis. The pelvis is divided into two parts: the sacrum, which is a shallow, bowl-like cavity, and the ilium, a flat plate-like body. In addition, the pelvis contains the ischium, which is a spine that articulates with the sacrum, a structure that forms the base for the hip joint.

Although the anatomy of the hip is well understood, the pelvis has not been studied in depth. Although the association between the pelvic structure and hip disorders is less certain, it does exist. Generally, only developmental hip diseases have been studied in the past. Although this study did not involve a human population, it could lead to further discussions on the role of the pelvis in common hip disorders. This study may also lead to improved understanding of the structure of the pelvic bone.

Function

The Pelvis is the lower abdominal area of both men and women. It protects reproductive and digestive organs and supports the hip joints. Three bones make up the pelvis: the ilium, the sacrum, and the coccyx. The pelvic floor is a soft cushion between these bones that acts as a spring for the entire pelvic structure. The pelvis is attached to the rest of the skeleton via the sacroiliac joint, a ring-shaped attachment from the lower spinal column.

The pelvic girdle is a complex anatomical structure that changes in size and shape during pregnancy and childbirth. Because it’s so shaped, pelvic functions depend on its structure. The pelvis must be able to attenuate forces from the torso and the lower body as a result of gravity. This is done through the pelvic bones and muscles. These muscles are essential for pelvic stability and erect posture, and they facilitate movement of the trunk and limbs.

Anatomical landmarks

In this study, pain intensity was measured using 13 intra-pelvic side-wall landmarks in women with and without chronic pelvic pain. This study tested the discrimination property of these landmarks to distinguish chronic pain from non-chronic pain in the same women. The study involved 36 non-randomly selected parous women who had suffered from chronic pelvic pain after childbirth and 29 women who did not experience this condition. The primary outcome measure was pain intensity reported on these landmarks, and individual sum scores were calculated for each landmark.

Detecting anatomical landmarks has several challenges. Firstly, the physician must be familiar with each landmark to accurately detect its location. Manual landmark labeling is time consuming and interrupts clinical workflow. It also yields subjective results which vary from one case to another. In addition, the surgeon must be aware of patient specific variations or ambiguous structures. To overcome these challenges, automatic algorithms should be developed that are fast, reliable, and robust enough to identify landmarks accurately in a clinical setting.

Distinctions between male and female pelvis

Understanding the differences between the male and female pelvis is important during pregnancy and in childbirth. The pelvic inlet is a critical factor in safe delivery. The male pelvis is more powerful and has a larger, thicker bone structure. The female pelvis is much thinner and broader, and it is shaped differently to accommodate childbearing. For this reason, the differences in the male and female pelvis are significant.

Male and female pelvis are both v-shaped in shape. However, the female pelvis is shaped more like a rounded u-shape. Both pelvic structures contain the sacrum and coccyx, which are located near the pubic arch. Male pelvis bones have narrower, longer, and shorter than female ones. Women also have more pronounced sacral crests and a rounded ischium.