The femoral neck is the region of the femur bounded by the femoral head proximally and the greater and lesser trochanters distally (shown below). A femoral neck fracture is intracapsular, that is within the hip joint and beneath the fibrous joint capsule.
vertebral arch the dorsal bony arch of a vertebra, composed of the laminae and pedicles of a vertebra. zygomatic arch the arch formed by the temporal process of the zygomatic bone and the zygomatic process of the temporal bone. See also anatomic Table of Bones in the Appendices.
Those in the two lower regions, the sacrum and coccyx, are united in the adult to form two bones and are called, the fixed vertebrae. Human Vertebral Column. With the exception of the first two cervical vertebrae, all the movable vertebrae have similar structure; A typical vertebra is a bony ring.ive sacral vertebrae form the sacrum. Four coccygeal vetebrae form the coccyx or tail. The vertebrae in the three upper regions remain separate or distinct throughout life, and are called the movable vertebrae.