Final answer:
The round ligaments of the uterus are the key structures that connect the uterus to the labia majora, helping in maintaining the position of the uterus within the abdominopelvic cavity.
Step-by-step explanation:
The ligaments that connect the uterus to the labia majora are known as the round ligaments of the uterus. These ligaments attach to the uterus near the uterine tubes and extend through the inguinal canal, terminating at the labia majora. This vital structure helps to maintain the position of the uterus within the abdominopelvic cavity.
In contrast, other ligaments like the broad ligament and the uterosacral ligament support the uterus but do not extend to the labia majora. The broad ligament is a fold of peritoneum that attaches the uterus to the pelvic wall, and the uterosacral ligament anchors the uterus posteriorly from the cervix to the sacrum.