Anatomy of the Stomach Quiz

<p>Triangular (A)</p> Signup and view all the answers

<p>Dietary habits (D)</p> Signup and view all the answers

<p>Standing (D)</p> Signup and view all the answers

<p>Cardiac orifice (C)</p> Signup and view all the answers

<p>Vertical long axis (D)</p> Signup and view all the answers

<p>Left gastric artery (C)</p> Signup and view all the answers

<p>Short gastric arteries (C)</p> Signup and view all the answers

<p>Left gastro-omental artery (B)</p> Signup and view all the answers

<p>Hepatic artery (B)</p> Signup and view all the answers

<p>Gastroduodenal artery (B)</p> Signup and view all the answers

<p>Right gastric artery (A)</p> Signup and view all the answers

<p>Left gastric artery (A)</p> Signup and view all the answers

<p>Supply the lower third of the esophagus (D)</p> Signup and view all the answers

<p>Regulates the flow of chyme into the duodenum (A)</p> Signup and view all the answers

<p>Right kidney (D)</p> Signup and view all the answers

<p>Gastric rugae (B)</p> Signup and view all the answers

<p>Erosion of the splenic artery (A)</p> Signup and view all the answers

<p>Peritoneum (A)</p> Signup and view all the answers

<p>Cardiac orifice and antrum (A)</p> Signup and view all the answers

<p>Spleen (C)</p> Signup and view all the answers

<p>Increased appetite (C)</p> Signup and view all the answers

<p>Behind the left 6th costal cartilage (A)</p> Signup and view all the answers

<p>A physiological sphincter (C)</p> Signup and view all the answers

<p>Circular groove (pyloric constriction) (C)</p> Signup and view all the answers

<p>Pyloric antrum, pyloric canal, and pylorus (B)</p> Signup and view all the answers

<p>1.25 cm to the right (A)</p> Signup and view all the answers

<p>Prepyloric vein of Mayo (D)</p> Signup and view all the answers

<p>Posterior and anterior surfaces (C)</p> Signup and view all the answers

<p>The pyloric orifice lies at the beginning of the duodenum (A)</p> Signup and view all the answers

<p>Left gastric vein (D)</p> Signup and view all the answers

<p>Superior mesenteric vein (D)</p> Signup and view all the answers

<p>Celiac lymph nodes (C)</p> Signup and view all the answers

<p>Posterior gastric artery (C)</p> Signup and view all the answers

<p>Drain into splenic vein (A)</p> Signup and view all the answers

<p>Gastric and gastroomental lymph nodes (A)</p> Signup and view all the answers

<p>Celiac lymph nodes (A)</p> Signup and view all the answers

<p>Root of the mesentery (A)</p> Signup and view all the answers

<p>Left renal vessels (A)</p> Signup and view all the answers

<p>Left psoas major muscle (C)</p> Signup and view all the answers

<p>Abdominal aorta (B)</p> Signup and view all the answers

<p>It lies posteriorly to it. (A)</p> Signup and view all the answers

<p>Inferior mesenteric vein (B)</p> Signup and view all the answers

<p>Root of the mesentery (A)</p> Signup and view all the answers

<p>Right ureter (C)</p> Signup and view all the answers

Two horizontal planes used to divide the abdomen: the subcostal plane at the level of the third lumbar vertebra (L3) and the intertubercular plane at the level of the fifth lumbar vertebra (L5).

Two vertical planes used to divide the abdomen: the right and left midclavicular lines, which run vertically down the body, passing through the midpoints of the clavicles.

The largest and most dilated portion of the gastrointestinal (GI) tract, responsible for the digestion and breakdown of food.

The stomach's location within the abdomen is in the left hypochondrium (upper left region), epigastric region (central upper region), and umbilical region (central region, around the belly button).

The stomach is positioned at the level of the 10th thoracic vertebra (T10) to the 3rd lumbar vertebra (L3).

The typical capacity of an adult stomach is approximately 2 liters.

The most common shape of the stomach is J-shaped, with its long axis oriented vertically. This shape can vary depending on factors like distension, body build, respiration, and body position.

An alternative shape of the stomach is Steer horn-shaped, with a more horizontal long axis. This shape is more common in short and obese individuals.

The narrow, distal part of the stomach, connecting the antrum to the pyloric sphincter.

The muscular ring at the base of the stomach that controls the flow of food into the small intestine.

The folds or ridges within the lining of the stomach, which increase surface area for digestion.

The region of the stomach responsible for mixing and churning food before it enters the pyloric canal.

The anatomical space behind the stomach, containing organs like the pancreas and spleen.

The area of the stomach that lacks peritoneal covering, allowing it to directly contact the diaphragm.

A serious complication of a perforated ulcer in the stomach, potentially leading to infection of the abdominal cavity.

A condition where the pancreas becomes inflamed, often due to a perforated ulcer in the stomach.

A physiological sphincter formed by smooth muscle fibers of the right crus of the diaphragm, encircling the lower end of the esophagus. It prevents stomach contents from flowing back into the esophagus.

The opening through which food passes from the esophagus to the stomach. Located behind the left 6th costal cartilage, 2-4 cm from the median plane at the level of T10 or T11 vertebra.

The opening between the stomach and the small intestine (duodenum). Lies at the transpyloric plane (L1), 1.25 cm to the right of the median plane.

The dome-shaped upper portion of the stomach. It lies to the left of the cardia and above the body of the stomach.

The main part of the stomach, located below the fundus. It is the largest part of the stomach and serves as the primary storage area for food.

The narrowed, terminal portion of the stomach that connects to the duodenum. It consists of the pyloric antrum, pyloric canal, and pylorus.

The curved edge of the stomach on the right side. It is shorter and curves along the upper border of the organ.

The curved edge of the stomach on the left side. It is longer and curves along the lower border of the organ.

The main artery supplying the stomach, arising from the celiac trunk, which is a branch of the abdominal aorta.

A branch of the hepatic artery, this artery runs to the left along the lesser curvature, supplying the lower right part of the stomach.

Arising from the splenic artery, these arteries supply the fundus (upper curved part) of the stomach.

A branch of the splenic artery, this artery supplies the stomach along the upper part of the greater curvature.

A branch of the gastroduodenal artery, this artery supplies the stomach along the lower part of the greater curvature.

The main artery supplying the stomach and its surrounding structures, branching from the abdominal aorta at the level of T12.

The artery supplying the liver, gallbladder, and duodenum, branching from the celiac trunk.

The artery supplying the spleen and its surrounding structures, including the pancreas, branching from the celiac trunk.

The artery that supplies blood to the lower part of the stomach's greater curvature, also known as the right gastroepiploic artery.

This artery provides blood to the back of the stomach's fundus and the upper part of its body. It's a branch of the splenic artery, though it might not always be present.

The veins in the stomach drain into the portal circulation, a system of blood vessels that carry blood from the digestive system to the liver. This system is responsible for filtering nutrients and toxins.

These veins drain directly into the hepatic portal vein, which carries blood from the digestive tract to the liver.

These veins drain into the splenic vein, which carries blood from the spleen and pancreas to the liver.

This vein drains into the superior mesenteric vein, which carries blood from the small intestine to the liver.

The lymphatic system is a network of vessels that carry lymph fluid, which helps remove waste products and fight infections. The stomach's lymphatic drainage is important for maintaining its health.

These lymph nodes filter lymph fluid from the stomach's anterior and posterior surfaces, helping to remove waste and fight infections.

The second part of the duodenum is situated on the right side of the abdominal cavity. It is a curved structure that lies in close proximity to the head of the pancreas and the right kidney.

The second part of the duodenum is enclosed by a loop of the jejunum, the first part of the small intestine, creating a distinct anatomical feature.

The third part of the duodenum is located horizontally across the abdomen. It lies posterior to the superior mesenteric vessels and the root of the mesentery, which suspends the small intestine from the posterior abdominal wall.

The anterior relations of the third part of the duodenum include the root of the mesentery and the superior mesenteric vessels. These structures are crucial in providing support and vascular supply to the small intestine.

The posterior relations of the third part of the duodenum include the right ureter, right psoas major muscle, right gonadal vessels, inferior vena cava, and the abdominal aorta. These structures are vital for urinary drainage, muscle movement, and blood circulation.

The fourth part of the duodenum ascends vertically on the left side of the abdominal cavity. It is positioned anterior to the left psoas major muscle, left sympathetic trunk, and the left renal vessels.

The fourth part's anterior relations include the coils of jejunum, which intertwine with the duodenum before heading towards the small intestine.

The posterior relations of the fourth part of the duodenum include the left psoas major muscle, left sympathetic trunk, left renal vessels, left gonadal vessels, and inferior mesenteric vein. These structures provide vital support for the digestive system.