The process is the both the lowest bone on the sternum and the smallest, and it helps the body anchor the diaphragm, the transverse thoracic, and the rectus abdominis. In humans it is located at the level of the 9th thoracic vertebra and the T6 dermatome. Many medical experts believe that the softer beginnings of this bone allow the ribcage and sternum the ability to grow, expand, and adjust without putting too much tension on each other.
The following conditions can cause a prolapsed uterus: 1  Pregnancy/childbirths with normal or complicated delivery through the vagina. 2  Weakness in the pelvic muscles with advancing age. 3  Weakening and loss of tissue tone after menopause and loss of natural estrogen.
And as women age, pelvic organ prolapse and other pelvic floor disorders become more common. When pelvic floor disorders develop, one or more of the pelvic organs may stop working properly. Conditions associated with pelvic floor disorders include: 1  Pelvic organ prolapse.2  Urinary incontinence.nything that puts increased pressure in the abdomen can lead to pelvic organ prolapse. Common causes include: 1  Pregnancy, labor, and childbirth (the most common causes). 2  Obesity. 3  Respiratory problems with a chronic, long-term cough. 4  Constipation. 5  Pelvic organ cancers.