Okay, I need to figure out which ligament connects the cervix to the lateral pelvic wall. Let's start by recalling the anatomy of the female pelvis. The cervix is part of the uterus, and there are several ligaments that support the uterus and cervix.

The main ligaments I remember are the cardinal ligament, the round ligament, the broad ligament, and the uterosacral ligament. The cardinal ligament, also known as Mackenrodt's ligament, is a thick structure that supports the cervix and upper vagina. It runs from the cervix to the lateral pelvic wall, specifically attaching to the ischial spine. That sounds like what the question is asking for.

The round ligament connects the uterus to the labia majora, so that's probably not the answer. The broad ligament is a wide fold of peritoneum that covers the uterus, but it doesn't attach to the pelvic wall. The uterosacral ligament connects the cervix to the sacrum, which is more posterior, not the lateral wall.

So the correct answer should be the cardinal ligament. The other options are either attached to different structures or support different parts of the pelvis. The cardinal ligament is crucial for the lateral support of the cervix, and its attachment to the ischial spine is key. I think that's right.

**Core Concept**
The cardinal ligament (Mackenrodt's ligament) provides primary lateral support to the cervix by connecting it to the lateral pelvic wall. It contains the uterine vessels and is a critical component of pelvic floor anatomy.

**Why the Correct Answer is Right**
The cardinal ligament extends from the cervix and upper vagina to the lateral pelvic wall, attaching to the ischial spine. It is a dense fibrous structure that prevents lateral displacement of the cervix and supports the uterus. Its vascular compartment houses the uterine artery and vein, making it clinically significant in pelvic surgery and trauma.

**Why Each Wrong Option is Incorrect**
**Option A (Round ligament):** Connects the uterus to the labia majora; supports the uterus anteriorly, not the cervix.
**Option B (Broad ligament):** A peritoneal fold covering the uterus, not a direct ligamentous attachment to the pelvic wall.
**Option C (Uterosacral ligament):** Connects the cervix to the sacrum posteriorly, not the lateral wall.

**Clinical Pearl / High-Yield Fact**
The cardinal ligament is a key structure in pelvic organ prolapse; its integrity is vital for maintaining cervical position. During cesarean sections, the uterine vessels within it must be carefully ligated to prevent hemorrhage.

**Correct Answer: C. Cardinal ligament**

✓ Correct Answer: B. Transverse cervical ligamnent