Which of the following aerial trunk give rise to uterine aery?
## **Core Concept**
The uterine artery is a branch of a major arterial trunk that supplies blood to the female reproductive system. It originates from a significant artery that arises from the abdominal aorta. Understanding the origin of the uterine artery is essential for knowledge of pelvic anatomy and surgical procedures.
## **Why the Correct Answer is Right**
The uterine artery arises from the **internal iliac artery** (also known as the hypogastric artery). The internal iliac arteries are two of the three main divisions of the common iliac arteries, which themselves are formed by the bifurcation of the abdominal aorta at the level of L4 vertebra. The internal iliac artery gives off several branches that supply the pelvic walls, pelvic organs, external genitalia, and perineum, including the uterine artery in females.
## **Why Each Wrong Option is Incorrect**
- **Option A:** The **aorta** itself does not directly give rise to the uterine artery; it gives rise to the common iliac arteries, which then divide into the internal and external iliac arteries.
- **Option B:** The **common iliac artery** bifurcates into the internal and external iliac arteries, but it does not directly give rise to the uterine artery.
- **Option D:** The **external iliac artery** primarily supplies the lower limb and does not give rise to the uterine artery.
## **Clinical Pearl / High-Yield Fact**
A key clinical point to remember is that the uterine artery crosses over the ureter near the cervix, which is a relationship that can be critical during surgical procedures like hysterectomy to avoid ureteral injury. Knowing the origin and course of the uterine artery is vital for understanding pelvic anatomy and for surgical interventions.
## **Correct Answer:** C. Internal iliac artery.