Joints and Ligaments of the pelvis
Joints and Ligaments-
There are four pelvic joints:
1- One symphysis pubic.
2- Two Sacroiliac joints.
3- One Sacrococcygeal joint.
The Symphysis pubis - is formed at the junction of the two pubic bones which are united by a pad of cartilage.
The Sacroiliac joints- are the strongest joints in the body. they joint the sacrum to the Ilium and thus connect the spine to the pelvis.
The Sacrococcygeal joint-is formed where the base of the coccyx articulates with the tip of the sacrum.
In the non-pregnant state there is very little movement in these joints, but during pregnancy endocrine activity cause the ligaments to soften, which allows the joints to give.
1-Sacroiliac ligament -The ligaments pass in front of the and behind each sacroiliac joint.
2-Sacrospinous ligament - It is the ligaments that connects the ischial spine to the lateral surface of the sacrum and coccyx.
3-Sacrotuberous ligament -It is the ligaments that connects the ischial tuberosity to the lateral surface of the sacrum and coccyx.
4-Symphysis pubis ligament -Ligaments are used to bridge spaces in the walls of the pelvis.
5-Sacrococcygeal ligament -it is the ligament that connects sacrum to the coccyx.