Abdomen Practice Questions

Q: Which segment of the liver receives blood supply from both the right and left hepatic arteries and portal veins, and drains directly into the inferior vena cava?

Segment I (Caudate Lobe). ***Segment I (Caudate Lobe)*** - The **caudate lobe** is unique in its blood supply and venous drainage. It receives arterial supply from both the right and left hepatic arteries and venous drainage from both the right and left portal veins [1]. - Its venous drainage is also distinct, emptying directly into the **inferior vena cava (IVC)** via several small, independent hepatic veins, rather than through the main right, middle, or left hepatic veins like the other segments [1]. *Segment II* - This segment is part of the **left hepatic lobe** and is supplied by branches of the left hepatic artery and left portal vein [1]. - Its venous drainage primarily flows into the **left hepatic vein**. *Segment IV* - This segment, also known as the **quadrate lobe**, is part of the functional left lobe, though anatomically it's often considered part of the right lobe [1]. - It receives blood primarily from the **left portal vein** and drains into the **middle hepatic vein** [1]. *Segment III* - This segment is part of the **left hepatic lobe** and is located to the left of the falciform ligament [1]. - It receives arterial supply from the **left hepatic artery** and venous supply from the **left portal vein**, draining ultimately into the **left hepatic vein**.

Q: Which of the following lymph nodes does not drain the stomach wall?

Inguinal nodes. ***Inguinal nodes*** - The **inguinal lymph nodes** primarily drain the lower limbs, perineum, and external genitalia. - They do **not** receive any lymphatic drainage from the **stomach wall**, making this the correct answer. - These nodes are located in the **groin region** and are part of the superficial and deep inguinal lymphatic chains. *Pyloric nodes* - The **pyloric nodes** are located around the pylorus of the stomach [1]. - They **do drain** lymph from the **pyloric region** of the stomach [1]. - These are part of the gastric lymphatic drainage system [1]. *Short gastric vessel nodal group* - The **short gastric vessel nodal group** is found along the short gastric arteries. - These nodes **do drain** the **fundus** and a portion of the **body of the stomach**. - They follow the short gastric vessels from the greater curvature to the splenic hilum. *Right gastroepiploic nodes* - The **right gastroepiploic nodes** are situated along the greater curvature of the stomach, following the right gastroepiploic vessels [1]. - They **do drain** the **inferior half** of the greater curvature of the stomach [1]. - These nodes are part of the gastric and omental lymphatic network [1].

Q: The kidney is surrounded by which fascia?

Gerota's Fascia. ***Gerota's Fascia*** - The kidney is surrounded by a tough, fibrous capsule, and external to this capsule is the **renal fascia**, also known as **Gerota's fascia** [1]. - This fascia encloses the kidneys and adrenal glands along with the perinephric fat, anchoring them to the posterior abdominal wall [1], [2]. - It is a key anatomical landmark that helps contain renal hemorrhage or infection. *Sibson's fascia* - **Sibson's fascia** is the **suprapleural membrane**, a fibrous sheet covering the apex of the lung. - It has no anatomical association with the kidney. *Buck's Fascia* - **Buck's fascia** is a deep fascia of the penis, which encloses the corpora cavernosa and corpus spongiosum. - It is entirely unrelated to the anatomy of the kidney. *None of the options* - This option is incorrect because **Gerota's fascia** is indeed a distinct fascial layer that surrounds the kidney.

Q: Which of the following is a permanent mucosal fold?

Plicae circularis. ***Plicae circularis*** - Also known as **Valves of Kerckring**, these are large, **permanent folds** of the mucosa and submucosa in the **small intestine** (jejunum and ileum) [2]. - They are **true structural folds** that remain present regardless of the state of intestinal distension. - They increase the surface area for absorption and are a defining histological feature of the small intestine [1], [2]. *Heister's valves* - These are **spiral folds** found within the **cystic duct** of the biliary system. - While they are consistent anatomical features, they are **not classified as permanent mucosal folds** in the strict anatomical sense, as they can vary in prominence and are more functional structures that prevent collapse of the duct. *Transverse rectal fold* - These are **semilunar folds** (also called Houston's valves) that protrude into the lumen of the rectum. - They are **not permanent** and can appear or disappear depending on the state of rectal distension. *Gastric rugae* - These are **temporary folds** in the gastric mucosa that allow for expansion of the stomach when filled with food. - They **flatten out** when the stomach is distended, making them clearly non-permanent structures.

Q: Which of the following is a branch of the inferior mesenteric artery?

Sigmoid artery. ***Sigmoid artery*** - The **inferior mesenteric artery (IMA)** supplies the distal third of the transverse colon, the descending colon, the sigmoid colon, and the superior part of the rectum [1]. - The **sigmoid arteries** are branches of the IMA that specifically supply the sigmoid colon [1]. *Middle colic artery* - The **middle colic artery** is a primary branch of the **superior mesenteric artery (SMA)**, not the inferior mesenteric artery [1]. - It primarily supplies the **transverse colon** [1]. *Renal artery* - The **renal arteries** are direct branches of the **abdominal aorta** that supply the kidneys. - They are not branches of either the superior or inferior mesenteric arteries. *Right Colic artery* - The **right colic artery** is a branch of the **superior mesenteric artery (SMA)**, not the inferior mesenteric artery [1]. - It typically supplies the **ascending colon** [1].

Q: All of the following are true about the duodenum except?

Minor duodenal papilla is in the third part. ***Minor duodenal papilla is in the third part*** - The **minor duodenal papilla** (for the accessory pancreatic duct) is typically located in the **second part of the duodenum**, superior to the major duodenal papilla. - Its presence in the **third part** would be an anatomical variation, but it is not its usual or expected location. *Fourth part is the shortest part* - The **fourth part** of the duodenum is actually the **shortest segment**, measuring about 2.5 cm. - This statement is anatomically correct, as the duodenum transitions into the jejunum at the **duodenojejunal flexure**. *First part appears like a duodenal cap on barium studies* - The **first part of the duodenum** has a smooth, triangular appearance on barium studies, which is classically referred to as the **duodenal cap** [2]. - This characteristic shape is due to its relatively smooth mucosal lining compared to other duodenal parts. *Ampulla of Vater opens through the second part* - The **Ampulla of Vater** (hepatopancreatic ampulla), where the common bile duct and main pancreatic duct unite, opens into the **second part of the duodenum** [1]. - This opening is marked by the **major duodenal papilla**, an important landmark for bile and pancreatic juice flow [3].

Q: The majority of gastric lymph ultimately drains to which of the following?

Coeliac nodes. The majority of gastric lymph ultimately drains to which of the following? ***Coeliac nodes*** - The coeliac nodes are the **final common pathway** for most lymphatic drainage from the stomach, serving as a regional lymph node basin [1]. - Lymph from the various perigastric nodal groups eventually funnels into the coeliac nodes, located around the **coeliac artery** [1]. *Pyloric nodes* - **Pyloric nodes** (suprapyloric, infrapyloric, and retropyloric) drain lymph from the **antrum and pylorus** of the stomach [1]. - However, these nodes ultimately drain into the coeliac nodes, not directly receiving the majority of gastric lymph [1]. *Short gastric vessel nodal group* - This group of nodes drains the **fundus** and **upper body** of the stomach along the short gastric vessels [1]. - Like other perigastric nodes, their lymphatic drainage ultimately proceeds to the more central coeliac nodes [1]. *Right gastroepiploic nodes* - The **right gastroepiploic nodes** primarily drain lymph from the **greater curvature** of the stomach [1]. - This stream of lymph, too, eventually converges towards the coeliac nodes as its next major station [1].

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: 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: Valve of Heister is seen in

Cystic duct. ***Cystic duct*** - The **spiral valve of Heister** (or Valves of Heister) are a series of crescentic folds of mucous membrane found within the cystic duct [1]. - These valves are thought to help prevent the collapse or over-distension of the cystic duct, ensuring a continuous flow of bile to and from the gallbladder. *Common bile duct* - The common bile duct is formed by the union of the **cystic duct** and the **common hepatic duct**. - It does not contain the Valve of Heister; its primary function is to transport bile to the duodenum. *Common hepatic duct* - The common hepatic duct is formed by the union of the **right and left hepatic ducts** from the liver. - It also does not contain the Valve of Heister; its role is to drain bile from the liver. *Pancreatic duct* - The pancreatic duct (or **Duct of Wirsung**) carries digestive enzymes from the pancreas to the duodenum. - It is anatomically distinct from the biliary system and does not contain the Valve of Heister.

Question 1

Which segment of the liver receives blood supply from both the right and left hepatic arteries and portal veins, and drains directly into the inferior vena cava?

Accepted Answer

Segment I (Caudate Lobe)

Answer

Segment II

Answer

Segment IV

Answer

Segment III

Question 2

Which of the following lymph nodes does not drain the stomach wall?

Accepted Answer

Inguinal nodes

Answer

Pyloric nodes

Answer

Short gastric vessel nodal group

Answer

Right gastroepiploic nodes

Question 3

The kidney is surrounded by which fascia?

Accepted Answer

Gerota's Fascia

Answer

Sibson's fascia

Answer

Buck's Fascia

Answer

None of the options

Question 4

Which of the following is a permanent mucosal fold?

Accepted Answer

Plicae circularis

Answer

Heister's valves

Answer

Transverse rectal fold

Answer

Gastric rugae

Question 5

Which of the following is a branch of the inferior mesenteric artery?

Accepted Answer

Sigmoid artery

Answer

Middle colic artery

Answer

Renal artery

Answer

Right Colic artery

Question 6

All of the following are true about the duodenum except?

Accepted Answer

Minor duodenal papilla is in the third part

Answer

Fourth part is the shortest part

Answer

First part appears like a duodenal cap on barium studies

Answer

Ampulla of Vater opens through the second part

Question 7

The majority of gastric lymph ultimately drains to which of the following?

Accepted Answer

Coeliac nodes

Answer

Pyloric nodes

Answer

Short gastric vessel nodal group

Answer

Right gastroepiploic nodes

Question 8

Posterior duodenal ulcer is related to which artery?

Accepted Answer

Gastroduodenal artery

Answer

Splenic artery

Answer

Superior mesenteric artery

Answer

Left gastric artery

Question 9

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 10

Valve of Heister is seen in

Accepted Answer

Cystic duct

Answer

Common bile duct

Answer

Common hepatic duct

Answer

Pancreatic duct

Abdomen — MCQs

Abdomen — MCQs

On this page

Practice by Chapter

Want unlimited practice?