Abdomen Practice Questions

Q: Posterior duodenal ulcer is related to which artery?

Gastroduodenal artery. ***Gastroduodenal artery*** - A **posterior duodenal ulcer** can erode into the gastroduodenal artery, leading to potentially life-threatening **upper gastrointestinal bleeding**. [1] - The gastroduodenal artery runs along the **posterior wall of the duodenum**, making it vulnerable to ulceration in this specific location. [1] *Splenic artery* - The splenic artery supplies the **spleen** and part of the stomach; it is not directly adjacent to the duodenum. - Erosion into the splenic artery would typically be associated with ulcers originating from the **posterior wall of the stomach**, not the duodenum. *Left gastric artery* - The left gastric artery supplies the **lesser curvature of the stomach** and distal esophagus. - While it can be a source of bleeding from **gastric ulcers**, it is anatomically distant from a posterior duodenal ulcer. *Superior mesenteric artery* - The superior mesenteric artery is a major vessel supplying the **midgut** (from the duodenum to the transverse colon). - It is located more **inferiorly and anteriorly** to the duodenum, and not directly at risk from a posterior duodenal ulcer.

Q: Bare area of liver is related to which of the following structures -

Hepatic veins. ***Hepatic veins*** - The **bare area of the liver** is a region on the posterior-superior (diaphragmatic) surface of the liver that is **not covered by peritoneum** [2]. - This area is bounded by the **superior and inferior layers of the coronary ligament**. - Within this bare area, the **hepatic veins** drain into the **inferior vena cava (IVC)** as it ascends through a groove in the liver substance before entering the right atrium [1], [2]. - The **hepatic veins** are the key vascular structures directly related to the bare area, making this the expected answer in the context of clinically relevant structures [3]. *Diaphragm* - The bare area is indeed in **direct contact with the diaphragm**, which forms its posterior boundary [2]. - While anatomically the bare area is defined by this relationship with the diaphragm, in clinical and examination contexts, the question typically refers to the **vascular structures** within or traversing this area. - The diaphragm is more of a boundary structure rather than a structure "housed within" the bare area. *Hepatic portal vein* - The **hepatic portal vein** enters the liver at the **porta hepatis** on the inferior surface of the liver. - It brings **nutrient-rich, deoxygenated blood** from the gastrointestinal tract to the liver [1]. - The porta hepatis is anatomically separate from the bare area, which is on the posterior-superior surface. *Cystic duct* - The **cystic duct** connects the **gallbladder** to the **common hepatic duct** to form the common bile duct. - This is part of the **extrahepatic biliary tree** located in the **porta hepatis** region. - It is on the undersurface of the liver, completely separate from the bare area.

Q: Nerve entering the inguinal canal through deep inguinal ring?

Genital branch of genitofemoral. ***Genital branch of genitofemoral*** - This nerve **traverses** the entire length of the inguinal canal, primarily residing within the **spermatic cord** in males or the **round ligament** in females [1]. - It arises from the **lumbar plexus** (L1-L2) and enters the canal through the deep inguinal ring [1]. *Ilioinguinal nerve* - The ilioinguinal nerve typically enters the inguinal canal more **superficial** to the deep inguinal ring, often piercing the **internal oblique muscle** [2]. - While it runs through a portion of the inguinal canal, it does not enter via the **deep inguinal ring** with the neurovascular structures destined for the testis/labia majora. *Pudendal nerve* - The pudendal nerve mainly supplies the **perineum** and **external genitalia** and does not enter the inguinal canal. - It courses through the **pudendal canal** (Alcock's canal) and is associated with the **sacral plexus**. *Superior rectal nerve* - The superior rectal nerve is a branch of the **inferior mesenteric plexus** and innervates the **superior part of the rectum**. - It is not associated with the **inguinal canal** or its contents.

Q: Superior rectal vein drains into?

Inferior mesenteric vein. ### Inferior mesenteric vein - The **superior rectal vein** drains blood from the **upper part of the rectum**. - It then ascends to directly join the **inferior mesenteric vein**, which is part of the **portal venous system** [1]. *External iliac vein* - The **external iliac vein** primarily drains structures from the **lower limb** [2]. - It does not directly receive venous drainage from the rectum. *Internal iliac vein* - The **internal iliac vein** drains structures from the **pelvic viscera**, including the **middle and inferior rectal veins**. - However, the superior rectal vein specifically drains into the portal system via the inferior mesenteric vein. *Internal pudendal vein* - The **internal pudendal vein** drains structures of the **perineum** and external genitalia. - It is not involved in draining the main rectal venous flow.

Q: Tumour of the uncinate process of the pancreas will compress which artery

Superior mesenteric artery. ***Superior mesenteric artery*** - The **uncinate process** forms the lower and medial part of the head of the pancreas, hooking around and behind the **superior mesenteric vessels**. - A tumor in this region would therefore almost immediately compress the **superior mesenteric artery** and vein due to its close anatomical relationship. *Splenic artery* - The **splenic artery** runs along the superior border of the pancreas, primarily associated with the body and tail. - A tumor in the **uncinate process** (part of the head) would be anatomically distant from the splenic artery, making compression unlikely. *Inferior mesenteric artery* - The **inferior mesenteric artery** arises from the aorta much lower than the pancreas, typically at the L3 vertebral level. - Its anatomical position makes it spatially separated from the uncinate process of the pancreas, so compression is not expected. *Common hepatic artery* - The **common hepatic artery** runs anterior to the portal vein and to the left of the bile duct, supplying the liver. - It is located superior to the head of the pancreas and away from the uncinate process, hence not typically affected by tumors in that specific pancreatic region.

Q: Cholecystocaval line separates:

Right anterior and right posterior sectors of liver. ***Right anterior and right posterior sectors of liver*** - The **cholecystocaval line (or Cantlie's line)** is a surgical landmark that passes from the fossa of the gallbladder to the inferior vena cava [1]. - It divides the **right lobe** of the liver into the **right anterior sector** (containing segments V and VIII) and the **right posterior sector** (containing segments VI and VII) [1]. - The line roughly correlates with the course of the **middle hepatic vein**, which runs along this plane [1]. *Segments IV and V of liver* - Segment **IV** (quadrate lobe) is part of the **left functional lobe** (medial sector), while segment **V** is part of the **right anterior sector** [1]. - These segments are **not adjacent** and are separated by multiple anatomical planes, not specifically by the cholecystocaval line. *Segments IV and VIII of liver* - Segment **IV** is in the left functional lobe (medial sector), and segment **VIII** is in the **right anterior sector** [1]. - These segments are not directly separated by the cholecystocaval line, which divides the right lobe only. *Right and left lobes of liver* - While the cholecystocaval line does approximate the division between the **functional right and left lobes** of the liver (along the middle hepatic vein), this is not its primary definition [1]. - The **main portal fissure** is the principal divider of functional lobes. - The cholecystocaval line's **specific and primary role** is to divide the right lobe into its **anterior and posterior sectors** [1].

Q: Which of the following statements about the bare area of the liver is false?

It is circular in shape. ***It is circular in shape*** - The bare area of the liver is **triangular** in shape, bordered by the reflections of the **coronary ligaments** and the inferior vena cava. [1] - Its shape is dictated by the anatomical arrangement of these peritoneal folds, making it distinctly non-circular. *Infection can spread from the abdominal to thoracic cavity at this area* - This statement is true because the bare area is the only part of the liver not covered by **peritoneum**, allowing direct contact between the liver and the diaphragm. [1] - This anatomical arrangement facilitates the spread of infections, like **subphrenic abscesses**, from the abdominal cavity to the posterior mediastinum and pleural cavity. [2] *It is not a site of portocaval anastomosis* - This statement is true; there is **no direct portosystemic shunt** at the bare area of the liver that becomes significant in portal hypertension. - While small veins connect the liver capsule to the diaphragm, these do not represent major portocaval anastomoses like those found at the gastroesophageal junction or rectum. *Formed by the reflections of coronary ligaments* - This statement is true; the bare area is specifically demarcated by the points where the **anterior and posterior layers of the coronary ligament** diverge, leaving a triangular region of the liver directly apposed to the diaphragm. [1] - The **coronary ligaments** are reflections of the peritoneum from the diaphragm onto the superior surface of the liver.

Q: What is the posterior relation of the neck of the pancreas?

Origin of portal vein. ***Origin of portal vein*** - The **neck of the pancreas** is intimately associated with the formation of the **hepatic portal vein** [1]. - The **superior mesenteric vein** and **splenic vein** unite behind the pancreatic neck to form the **hepatic portal vein** [1]. *IVC* - The **inferior vena cava (IVC)** lies posterior to the **head of the pancreas**, not the neck. - While it's in proximity, it does not directly relate to the neck in the same way the portal vein does. *Aorta* - The **abdominal aorta** lies posterior to the **body** and **tail of the pancreas**, further superior and to the left. - It is not a direct posterior relation of the pancreatic neck. *Common bile duct* - The **common bile duct** passes through a groove on the posterior surface of the pancreatic **head**, sometimes even embedded within it. - It is not a direct posterior relation of the pancreatic neck, which is a different segment.

Q: Gastrosplenic ligament contains ?

Short gastric artery. ***Short gastric artery*** - The **short gastric arteries** are branches of the **splenic artery** and supply the **fundus** and upper part of the **greater curvature** of the stomach. - These vessels travel within the **gastrosplenic ligament** (or gastrosplenic omentum), connecting the greater curvature of the stomach to the hilum of the spleen [1]. *Splenic vessels* - The **splenic artery** and **vein** primarily travel within the **splenorenal ligament** (or lienorenal ligament), connecting the spleen to the posterior abdominal wall. - These major vessels supply and drain the spleen itself, not typically running within the gastrosplenic ligament [1]. *Tail of pancreas* - The **tail of the pancreas** is typically located within the **splenorenal ligament**, closely associated with the **hilum of the spleen** [1]. - It does not extend into the gastrosplenic ligament, which connects the stomach to the spleen. *Portal vein* - The **portal vein** is a major vessel formed by the confluence of the **splenic vein** and **superior mesenteric vein**, and it is located in the **hepatoduodenal ligament** (part of the lesser omentum) along with the hepatic artery and common bile duct. - This vessel is far removed from the gastrosplenic ligament, which is situated between the stomach and spleen.

Q: Inferior epigastric artery forms the boundary of?

Hesselbach's triangle. ***Hesselbach's triangle*** - The **inferior epigastric artery** forms the superolateral border of Hesselbach's triangle [1]. - This triangle is clinically significant as it is a common site for **direct inguinal hernias** due to its relative weakness [1]. *Femoral triangle* - The femoral triangle is bounded by the **inguinal ligament superiorly**, the **sartorius muscle laterally**, and the **adductor longus muscle medially**. - It contains the **femoral nerve**, artery, and vein. *Adductor canal* - The adductor canal is an intermuscular tunnel located in the **thigh**, containing the **femoral artery and vein** and the **saphenous nerve**. - Its boundaries are the **vastus medialis**, adductor longus/magnus, and sartorius muscles. *Popliteal triangle* - This term is not a standard anatomical triangle. The correct term is the **popliteal fossa**, which is a diamond-shaped space behind the knee joint. - The popliteal fossa contains structures such as the **popliteal artery and vein**, tibial nerve, and common fibular nerve.

Question 1

Posterior duodenal ulcer is related to which artery?

Accepted Answer

Gastroduodenal artery

Answer

Splenic artery

Answer

Superior mesenteric artery

Answer

Left gastric artery

Question 2

Bare area of liver is related to which of the following structures -

Accepted Answer

Hepatic veins

Answer

Hepatic portal vein

Answer

Cystic duct

Answer

Diaphragm

Question 3

Nerve entering the inguinal canal through deep inguinal ring?

Accepted Answer

Genital branch of genitofemoral

Answer

Ilioinguinal nerve

Answer

Pudendal nerve

Answer

Superior rectal nerve

Question 4

Superior rectal vein drains into?

Accepted Answer

Inferior mesenteric vein

Answer

External iliac vein

Answer

Internal iliac vein

Answer

Internal pudendal vein

Question 5

Tumour of the uncinate process of the pancreas will compress which artery

Accepted Answer

Superior mesenteric artery

Answer

Inferior mesenteric artery

Answer

Common hepatic artery

Answer

Splenic artery

Question 6

Cholecystocaval line separates:

Accepted Answer

Right anterior and right posterior sectors of liver

Answer

Segments IV and V of liver

Answer

Right and left lobes of liver

Answer

Segments IV and VIII of liver

Question 7

Which of the following statements about the bare area of the liver is false?

Accepted Answer

It is circular in shape

Answer

It is not a site of portocaval anastomosis

Answer

Formed by the reflections of coronary ligaments

Answer

Infection can spread from the abdominal to thoracic cavity at this area

Question 8

What is the posterior relation of the neck of the pancreas?

Accepted Answer

Origin of portal vein

Answer

IVC

Answer

Aorta

Answer

Common bile duct

Question 9

Gastrosplenic ligament contains ?

Accepted Answer

Short gastric artery

Answer

Splenic vessels

Answer

Tail of pancreas

Answer

Portal vein

Question 10

Inferior epigastric artery forms the boundary of?

Accepted Answer

Hesselbach's triangle

Answer

Femoral triangle

Answer

Adductor canal

Answer

Popliteal triangle

Abdomen — MCQs

Abdomen — MCQs

On this page

Practice by Chapter

Want unlimited practice?