Question 1

Q: The abdominal part of the esophagus is supplied by which artery?

Left gastric artery and inferior phrenic artery. The esophagus is a muscular tube approximately 25 cm long, divided into cervical, thoracic, and abdominal segments. The **abdominal part** is the shortest segment (approx. 1.25 cm), passing through the esophageal hiatus of the diaphragm at the level of T10 to join the stomach at the cardiac orifice. **Why Option D is Correct:** The arterial supply of the esophagus follows its anatomical course: * **Left Gastric Artery:** A branch of the celiac trunk, it provides the primary supply to the abdominal esophagus. * **Left Inferior Phrenic Artery:** A direct branch of the abdominal aorta, it supplies the diaphragm and sends branches to the lower esophagus. **Analysis of Incorrect Options:** * **A. Bronchial Artery:** These supply the **thoracic part** of the esophagus (along with esophageal branches of the thoracic aorta). * **B. Abdominal Aorta:** While the aorta gives rise to the celiac trunk and phrenic arteries, it does not supply the abdominal esophagus directly. * **C. Right Gastric Artery:** This artery supplies the lesser curvature of the stomach but does not extend superiorly enough to supply the esophagus. **NEET-PG High-Yield Pearls:** 1. **Venous Drainage (Crucial):** The abdominal esophagus is a site of **Portosystemic Anastomosis**. The lower part drains into the Left Gastric Vein (Portal system) and the Azygos Vein (Systemic system). Clinical correlate: **Esophageal Varices** in portal hypertension. 2. **Nerve Supply:** Parasympathetic supply is via the **Vagus nerves** (Anterior and Posterior gastric nerves). 3. **Lymphatic Drainage:** The abdominal part drains into the **Left Gastric Lymph Nodes**, which eventually drain into the Celiac nodes.

Question

The abdominal part of the esophagus is supplied by which artery?

Accepted Answer

Left gastric artery and inferior phrenic artery

Answer

Bronchial artery

Answer

Abdominal aorta

Answer

Right gastric artery and inferior phrenic artery

Abdomen — MCQs

Abdomen — MCQs

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