Table of Contents
Where does the coxal bone articulate with the sacrum?
sacroiliac joint
The pelvic girdle consists of the two coxal bones (= pelvic or innominate or hip bones). These articulate with the sacrum behind at the sacroiliac joint, and with each other in front at the pubic symphysis.
What are the regions of the coxal bone?
It consists of three parts, the ilium, ischium, and pubis, which are distinct from each other in the young subject, but are fused in the adult; the union of the three parts takes place in and around a large cup-shaped articular cavity, the acetabulum, which is situated near the middle of the outer surface of the bone.
What bone articulates with the coxal bone?
The thigh consists of a single bone, the femur (Figure 9). The largest, longest, and strongest bone in the human body, it articulates with the os coxa at the hip and with the tibia at the knee.
What is the structure region of the sacrum that articulates with the os coxa?
The auricular (“ear-shaped”) surface of the sacrum articulates with the auricular surface of the os coxae. The sacral auricular surface is best seen in lateral aspect. i. The sacral tuberosity is the roughened, irregular, nonarticular area behind the auricular surface.
What coxal bone do they apply to?
The hip bone, or coxal bone, forms the pelvic girdle portion of the pelvis. The paired hip bones are the large, curved bones that form the lateral and anterior aspects of the pelvis. Each adult hip bone is formed by three separate bones that fuse together during the late teenage years.
What is the function of coxal bone?
The Anatomy of the Ilium In adults, this fan-shaped bone is fused with two other bones, the ischium and pubis, to make the hip bone (often referred to as the coxal bone). 1 As such, the ilium serves a weight-bearing function and is part of the structure that ensures the spine is supported when the body is upright.
What is the function of the sacral foramina?
The pelvic surface, located inside the curve of the sacrum contains four pairs of foramina. These foramina allow the anterior rami of the first four sacral spinal nerves to pass through.
What is the function of the sacrum?
The sacrum is a shield-shaped bony structure that is located at the base of the lumbar vertebrae and that is connected to the pelvis. The sacrum forms the posterior pelvic wall and strengthens and stabilizes the pelvis.