The pelvis is a complex structure that plays a crucial role in supporting the weight of the upper body and facilitating movement. It is made up of three primary bones:
- Ilum: This is the largest bone of the pelvis and forms the upper part. The ilium has a broad, wing-like shape, and its prominent ridge, known as the iliac crest, can be felt along the top of your hips.
- Ischium: This bone forms the lower back part of the pelvis. It’s the bone that you sit on, which is often referred to as the ischial tuberosity. The ischium provides support when sitting and is involved in movements of the lower limbs.
- Pubis: The pubis is the front portion of the pelvis. The two pubic bones meet at the pubic symphysis, a joint that allows for slight movement, which is especially important during childbirth.
These three bones work together to create a strong and stable foundation for the human skeleton while also allowing for mobility and flexibility in the hips and lower body. Understanding their structure and function is essential for grasping how our bodies move and support weight.