Which of the ligament provides the major support to the uterus and cervix?

NORCET 3 - 2022 (Shift-2)

Applied Anatomy

Easy

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

The Cardinal ligament, also known as the transverse cervical or Mackenrodt's ligament, is the primary support structure for the uterus and cervix.
It is a thick, strong band of connective tissue that anchors the cervix and upper vagina to the lateral pelvic walls.
Its main function is to resist the downward displacement of the uterus, thus preventing uterine prolapse.
This ligament contains the uterine artery and veins, making it a critical landmark in gynecological surgery, particularly hysterectomy.

Option A: The Round ligament's primary function is to maintain the anteverted position of the uterus (tilted forward). It does not provide significant structural support against prolapse.
Option B: The Broad ligament is a sheet-like fold of peritoneum that drapes over the uterus and adnexa. It functions as a mesentery, carrying blood vessels and nerves, but provides minimal structural support.
Option D: The Uterosacral ligaments provide important posterior support, pulling the cervix backward and helping to prevent retroversion. While they contribute to apical support along with the cardinal ligaments, they are not considered the single major support.

Visual 1: Anatomical Diagram - A posterior or lateral view of the uterus showing the cardinal, uterosacral, round, and broad ligaments. This helps visualize their points of attachment and understand their respective supportive roles.
Visual 2: Coronal Section - A coronal view of the pelvis illustrating how the cardinal ligaments extend from the cervix to the lateral pelvic walls, acting as a strong suspensory structure.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy and function of uterine supporting ligaments as background academic context rather than a clinical decision trigger.
Understanding uterine support is critical for diagnosing and managing Pelvic Organ Prolapse (POP). Weakness or damage to the cardinal and uterosacral ligaments, often from childbirth, is a primary cause of uterine descent.
During a hysterectomy, the cardinal ligaments must be carefully identified, clamped, and ligated because they contain the uterine vessels and are the main pedicles supporting the uterus.
What if? - If a patient has significant uterine prolapse but wishes to retain her uterus, a surgeon might perform a uterosacral ligament suspension, a procedure that re-attaches the apex of the vagina or cervix to the strong uterosacral ligaments to restore support.

How to Approach the Question

First, identify the core of the question, which is to find the 'major support' for the uterus and cervix.
Recall the different ligaments associated with the uterus: Round, Broad, Cardinal, and Uterosacral.
Systematically review the primary function of each ligament.
Differentiate between ligaments that position the uterus (like the round ligament) and those that provide structural, load-bearing support.
Recognize that the Broad ligament is primarily a peritoneal fold, not a true supportive ligament.
Compare the Cardinal and Uterosacral ligaments. Both provide support, but the Cardinal ligament is the principal structure preventing downward prolapse, making it the 'major' support.

Concept Tested & Keywords

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