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.
When this occurs, the uterus or bladder can create a bulge into the vagina. In severe cases, it is possible for the sagging uterus or bladder to work its way down far enough that the bulge can appear at the vagina's opening or even protrude from the opening. When the uterus sags downward, it is called uterine prolapse. When the bladder sags, it is called bladder prolapse, also known as a cystocele. Various stresses can cause the pelvic muscles and ligaments to weaken and lead to uterine or bladder prolapse.