High-Yield Exam Mnemonics
- Trans-Pyloric = L1, where Pylorus lies.
Recall: The transpyloric plane passes through L1 vertebra (not L3 – this is a distractor), but the question tests recognition of planes.
- Transpyloric = L1 = One important plane.
Recall: The transpyloric plane (of Addison) passes through L1 vertebra, midway between the jugular notch and pubic symphysis.
- Abdominal wall = Thoraco-Abdominal nerves.
Recall: The external oblique is innervated by thoracoabdominal nerves (T7-T11) and subcostal nerve (T12).
- Intersections Attach Anteriorly.
Recall: The three tendinous intersections are firmly attached to the anterior rectus sheath but not to the posterior sheath.
- Auerbach’s = Au (gold) lies between muscles.
Recall: Auerbach’s (myenteric) plexus is located between the inner circular and outer longitudinal smooth muscle layers of the muscularis externa.
- RIL = Rectus (medial), Inferior epigastric (lateral), Ligament (inferior).
Recall: Hesselbach’s triangle boundaries: medially – lateral border of rectus abdominis; laterally – inferior epigastric artery; inferiorly – inguinal ligament.
- SAD PUCKER for secondarily retroperitoneal; Kidneys are primarily retro.
Recall: Kidneys are primarily retroperitoneal (never had mesentery).
- Parietal = Pump acid + Produce intrinsic factor.
Recall: Parietal (oxyntic) cells secrete HCl (for digestion) and intrinsic factor (for vitamin B12 absorption).
- Second part = Secretions enter.
Recall: The major duodenal papilla (ampulla of Vater) is located on the posteromedial wall of the second (descending) part of the duodenum.
- IleoColic = Ileum + Cecum.
Recall: The ileocolic artery (branch of superior mesenteric artery) supplies the cecum, appendix, and terminal ileum.
- Pancreas head is hugged by Duodenum.
Recall: The head of the pancreas lies within the C-shaped concavity of the duodenum (first to fourth parts).
- Aorta Bifurcates at L4.
Recall: The aorta bifurcates into the right and left common iliac arteries at the level of L4 (at or just below the umbilicus).
- “OxidoREDuctases handle RED-ox reactions” – RED appears in both words.
Recall: Oxidoreductases catalyze redox reactions involving electron transfer.
- Complex IV = 4 = Final oxygen receiver.
Recall: Complex IV (cytochrome c oxidase) transfers electrons to molecular oxygen, the final electron acceptor.
- Q is Quick and mobile in the membrane.
Recall: Ubiquinone (CoQ) is lipid-soluble and moves freely within the inner mitochondrial membrane, shuttling electrons.
- NADH = 2.5, FADH₂ = 1.5 – NADH is worth more because it starts earlier.
Recall: One NADH yields approximately 2.5 ATP (or ~3 ATP by older estimates).
- DNP Dissipates the proton gradient.
Recall: DNP dissipates the proton gradient by carrying protons across the membrane, uncoupling electron transport from ATP synthesis.
- LysoZYME Zaps bacteria.
Recall: Lysozyme breaks bacterial cell walls (peptidoglycan), providing antibacterial defense.
- HCl is Harsh – it activates pepsinogen.
Recall: Hydrochloric acid converts inactive pepsinogen to active pepsin by cleaving a peptide fragment.
- Pancreas Provides an alkaline pH (7.5-8.5).
Recall: Pancreatic juice is alkaline (pH 7.5–8.5) due to bicarbonate content, optimal for pancreatic enzyme activity.
- SGLT1 Sucks Glucose with Sodium.
Recall: Glucose is absorbed via SGLT1 (sodium-dependent glucose transporter) at the apical membrane, an active process.
- Amino acids need Active transport with sodium.
Recall: Amino acids are absorbed via sodium-dependent transporters in the intestinal brush border, requiring ATP indirectly.
- Babies Pinocytose mama’s antibodies.
Recall: Newborns absorb maternal antibodies (IgG, IgA) from colostrum through pinocytosis, providing passive immunity.
- Crypts Create intestinal juice.
Recall: Succus entericus (intestinal juice) is secreted by crypts of Lieberkühn in the small intestine.
- Succus = Surface (brush border) digestion.
Recall: Succus entericus contains brush border enzymes (maltase, sucrase, lactase, peptidases) for terminal digestion.
- Enterohepatic = intestine-to-liver loop for bile salts.
Recall: Bile salts are reabsorbed in the terminal ileum and returned to the liver via portal circulation for reuse.
- Lactose = Laxative effect (osmotic pull).
Recall: Undigested lactose is osmotically active, drawing water into the lumen causing osmotic diarrhea.
- PLP = Protein (amino acid) shuffling enzyme.
Recall: Pyridoxal phosphate (from vitamin B6) is essential for aminotransferases (transaminases).
- Liver is the Laundry for ammonia – cleans it into urea.
Recall: The urea cycle occurs almost exclusively in the liver, converting toxic ammonia to urea.
- Point 8 to 1 = optimal Protein.
Recall: The RDA for protein is ~0.8–1 g/kg/day for adults.
- Folic acid = For Fetus neural tube formation.
Recall: Folic acid (400–800 µg/day) prevents neural tube defects like spina bifida.
- BMI = Body Mass over height squared In meters.
Recall: BMI = Weight in kilograms divided by height in meters squared.
- Kwashiorkor = swollen Kid (edema).
Recall: Kwashiorkor features edema due to low serum albumin (protein deficiency), fatty liver, skin changes, and preserved fat.
- “EIT forms the Alba” – External, Internal, Transversus.
Recall: The linea alba is formed by the interlacing aponeuroses of the three flat muscles: external oblique, internal oblique, and transversus abdominis.
- Transversus guards Transversalis.
Recall: From superficial to deep at the lateral abdominal wall: skin → superficial fascia → external oblique → internal oblique → transversus abdominis → transversalis fascia → extraperitoneal fat → parietal peritoneum.
- “MCL divides Middle” – Mid-Clavicular Line divides the abdomen vertically.
Recall: The mid-clavicular lines (or mid-inguinal points) form the two vertical planes dividing the abdomen into nine regions.
- Below Arcuate = Back is Bare (only transversalis).
Recall: Below the arcuate line (approximately midway between umbilicus and pubis), all three aponeuroses pass anterior to rectus abdominis.
- Inferior Epigastric = External iliac origin.
Recall: The inferior epigastric artery arises from the external iliac artery just above the inguinal ligament.
- Semi-lunar = where all three (EIT) aponeuroses unite.
Recall: The linea semilunaris represents where the aponeuroses of all three flat abdominal muscles (external oblique, internal oblique, transversus abdominis) fuse to form the lateral edge of the rectus sheath.
- Taeniae = Three bands in the Thick (large) intestine.
Recall: The large intestine (colon) has three taeniae coli (bands of longitudinal muscle) instead of a complete outer longitudinal layer.
- Auerbach’s = between muscle layers (Auer-bach = between-back of muscles).
Recall: Auerbach’s (myenteric) plexus lies between the circular and longitudinal muscle layers and primarily controls gut motility.
- Paneth = Protector cells with defensins.
Recall: Paneth cells secrete lysozyme, defensins, and phospholipase A2–antimicrobial peptides that protect the intestine.
- Meissner’s = Mucosa-related functions (Secretion).
Recall: Meissner’s (submucosal) plexus controls glandular secretion and local blood flow in the submucosa.
- Deep ring = in transversalis (deepest layer).
Recall: The deep inguinal ring is an opening in the transversalis fascia, located at the midpoint of the inguinal ligament, lateral to the inferior epigastric vessels.
- “Hesselbach = RIP” – Rectus, Inferior epigastric, Poupart’s (inguinal) ligament.
Recall: Hesselbach’s triangle (inguinal triangle) is bounded by: lateral = inferior epigastric artery, medial = lateral border of rectus abdominis, inferior = inguinal ligament.
- Ilioinguinal IN; Genitofemoral OUT.
Recall: The afferent limb of the cremasteric reflex is the ilioinguinal nerve (or femoral branch of genitofemoral – both L1).
- Broad = Big fold with uterine vessels.
Recall: The broad ligament is a double fold of peritoneum extending from the uterus to the lateral pelvic wall, containing the uterine vessels, ureter, and other structures.
- Lesser sac = Lesser (behind) stomach.
Recall: The lesser sac lies behind the stomach and lesser omentum, communicating with the greater sac through the epiploic foramen.
- Greater curvature = Gastro-omental; Lesser curvature = Gastric.
Recall: The right and left gastro-omental (gastroepiploic) arteries run between the layers of the greater omentum along the greater curvature of the stomach, forming an anastomotic arcade.
- Morrison’s = Most dependent when lying down (supine).
Recall: In the supine position, Morrison’s pouch (hepatorenal recess) is the most dependent part of the peritoneal cavity in the upper abdomen.
- 8-10-12: Vena cava (8 letters) at T8, Oesophagus (10 letters) at T10, Aortic hiatus (12 letters) at T12.
Recall: The esophageal hiatus is at T10 level, transmitting the esophagus and vagal trunks.
- Latarjet = Lesser curvature nerve.
Recall: The anterior vagal trunk gives hepatic branches and continues as the anterior nerve of Latarjet along the lesser curvature.
- Left gastric = Link between portal and systemic at lower esophagus.
Recall: The left gastric (coronary) vein drains the lower esophagus and lesser curvature into the portal vein.
- Gastroduodenal = from Common Hepatic, behind D1.
Recall: The gastroduodenal artery branches from the common hepatic artery.
- Jejunum = Juicy (thick, more folds); Ileum = Thin with more arcades.
Recall: Jejunum has thicker walls, more prominent plicae circulares, longer vasa recta, and fewer arterial arcades.
- Taeniae meet at the Tip’s base (appendix base).
Recall: All three taeniae coli (anterior/free, posterolateral, posteromedial) converge at the base of the appendix.
- Diverticula = where vessels Dive into muscle.
Recall: Colonic diverticula occur where blood vessels (vasa recta) penetrate the circular muscle layer, creating weak points.
- Rectum = smooth walls, no taeniae, no haustra, no epiploicae.
Recall: The rectum lacks taeniae coli (longitudinal muscle is complete, not in bands), haustra, and appendices epiploicae.
- Caudate = Covered by its own IVC drainage.
Recall: The caudate lobe receives portal blood but drains via small hepatic veins directly into the IVC, bypassing the major hepatic veins.
- Major = Main ducts; Minor = accessory.
Recall: The common bile duct and main pancreatic duct unite to form the hepatopancreatic ampulla, which opens at the major duodenal papilla (2nd part of duodenum, posteromedial wall).
- Splenic artery = Superior; Splenic vein = posterior.
Recall: The splenic artery runs tortuously along the superior border of the pancreas, giving pancreatic branches before reaching the spleen.
- L4 = bifurcation level (four-cation).
Recall: The abdominal aorta bifurcates into right and left common iliac arteries at the L4 vertebral level (at the level of the umbilicus).
- D3 (duodenum 3rd part) compressed by SMA – superior mesenteric artery.
Recall: The third part of the duodenum passes between the SMA (anteriorly) and the aorta (posteriorly).
- Left gonadal → Left renal vein.
Recall: The left gonadal vein drains into the left renal vein at a right angle, while the right gonadal vein drains directly into the IVC.
- Psoas = T12-L5, Primary hip flexor.
Recall: Psoas major arises from the transverse processes and lateral aspects of vertebral bodies of T12-L5 (and intervening intervertebral discs).
- Subcostal crosses Quadratus.
Recall: The subcostal nerve (T12) passes behind the lateral arcuate ligament and runs obliquely across quadratus lumborum before piercing transversus abdominis to supply the anterior abdominal wall and skin below the umbilicus.
- Kidney rests on Diaphragm, Psoas, Quadratus, Transversus.
Recall: The renal bed is formed by the diaphragm (superiorly), psoas major (medially), quadratus lumborum (laterally), and transversus abdominis aponeurosis.
- IgM = iMMediate (acute); HBeAg = Be aware, highly infectious!
Recall: IgM anti-HBc indicates acute infection, while HBeAg positivity reflects active viral replication and high infectivity.
- “Hepatitis E = Expectant mothers in danger.” HEV is the most dangerous hepatitis virus in pregnancy.
Recall: Hepatitis E in pregnant women, especially in the third trimester, carries a mortality rate of 10–30% due to fulminant hepatic failure.
- Vaccine = only anti-HBs (Surface antibody Solo).
Recall: Isolated anti-HBs positivity with all other markers negative indicates immunity from vaccination (which produces only anti-HBs).
- HCV = Cryo-C-Vasculitis.
Recall: Mixed cryoglobulinemia (Type II/III) is the classic extrahepatic manifestation of HCV, presenting with the triad of palpable purpura, arthralgia, and MPGN, along with low complement and positive RF.
- Rota = Round virus that Rolls through children in winter.
Recall: Rotavirus is the most common cause of severe, dehydrating gastroenteritis in children under 5 years globally, with peak incidence in winter.
- Giardia = Greasy stools + ‘Ghost-face’ trophozoite.
Recall: Giardia lamblia causes malabsorption with fatty, foul-smelling stools (steatorrhea) by coating the duodenal mucosa.
- Flask ulcers with RBC-eating amoeba = Metro + Luminal to finish the job.
Recall: Entamoeba histolytica causes amoebic dysentery with flask-shaped ulcers and trophozoites containing ingested RBCs (pathognomonic).
- Crypto-SMALL-pink-round oocysts; Isospora = Larger-oval.
Recall: Cryptosporidium parvum is a common cause of chronic diarrhea in AIDS patients (CD4 <100).
- Barrett’s = Belly (intestinal) mucosa in the esophagus; Goblet cells = Guarantee of Barrett’s.
Recall: Barrett’s esophagus is defined by replacement of normal squamous epithelium with intestinal metaplasia (goblet cells) – the hallmark.
- High-grade = High risk = Act now with Ablation.
Recall: High-grade dysplasia in Barrett’s esophagus carries significant risk of progression to adenocarcinoma and warrants endoscopic eradication therapy – radiofrequency ablation (RFA) or endoscopic mucosal resection (EMR).
- Nissen = N for Number one (360° complete wrap).
Recall: Nissen fundoplication (laparoscopic 360° wrap) is the gold standard surgical treatment for GERD with proven long-term efficacy.
- Heart cleared? Check the Esophageal Manometry + pH (EMP) for the real culprit.
Recall: Non-cardiac chest pain (NCCP) with normal cardiac workup requires combined esophageal manometry and 24-hour pH impedance monitoring to differentiate between GERD and motility disorders (e.g., esophageal spasm, achalasia).
- perfringens = Cafeteria/Canteen germ – reheated meats, cramps + diarrhea.
Recall: Clostridium perfringens type A enterotoxin causes watery diarrhea and cramps 8–16 hours after eating reheated meats.
- Parahaemolyticus = Prefers the sea (seafood) + Produces Green colonies on TCBS.
Recall: Vibrio parahaemolyticus is the most common cause of seafood-associated gastroenteritis worldwide.
- India’s Last Polio = 2011, West Bengal; Free by 2014.
Recall: The last case of wild poliovirus in India was reported on January 13, 2011, from Howrah, West Bengal.
- 2 Negative stools = Not polio = Discarded.
Recall: If two adequate stool samples (collected within 14 days, 24–48 hours apart) are negative for poliovirus, the case is classified as discarded (non-polio AFP). “Compatible polio” is used when adequate samples were NOT obtained and residual paralysis exists at 60-day follow-up.
- Flood + Fecal contamination = Fecal-oral diseases, Cholera chief among them.
Recall: Cholera (Vibrio cholerae) is a classic waterborne disease transmitted through fecally contaminated water, especially after flooding when sewage mixes with drinking water.
- H2S strip Black = Bacteria from the Back (fecal contamination).
Recall: The H2S strip test is a simple, field-level presumptive test for fecal contamination of water.
- Week 1 = Blood; Week 2 = Widal (antibodies); Week 3 = stool/urine.
Recall: Blood culture is the gold standard for diagnosing typhoid in the first week when bacteremia is highest (sensitivity 60–80%).
- 4 F’s = Fat, Female, Forty, Fertile → Cholesterol stones.
Recall: Cholesterol stones (including mixed stones) account for ~80% of gallstones in Western populations.
- Calot’s = Cholecystectomy’s Safety zone – Clear it or risk bile duct injury.
Recall: The Critical View of Safety requires clearing Calot’s triangle (bounded by the cystic duct, common hepatic duct, and inferior surface of the liver) to clearly identify only two structures entering the gallbladder – the cystic duct and cystic artery.
- Courvoisier = Cancer (not calculi) when the gallbladder is palpable + jaundice.
Recall: Courvoisier’s law states: if the gallbladder is palpable with obstructive jaundice, the cause is unlikely to be gallstones (because chronic stones cause a fibrotic, shrunken gallbladder that cannot distend).
- Black stones = Blood breakdown (hemolysis) = Bilirubin overload.
Recall: Black pigment stones are composed of calcium bilirubinate and are associated with chronic hemolytic anemias (sickle cell disease, thalassemia, hereditary spherocytosis) due to increased unconjugated bilirubin excretion.
- Infant + Intermittent crying + Red currant jelly = Intussusception (the bowel Inserts into Itself).
Recall: Intussusception is the telescoping of one bowel segment into another, most common in infants 6–18 months.
- Strangulation = Strangling the blood supply – emergency!
Recall: Strangulation occurs when the blood supply to the obstructed bowel is compromised, leading to ischemia, gangrene, and perforation if untreated.
- Cecum = largest Circumference = first to Crack (perforate) by Laplace.
Recall: By Laplace’s law (wall tension = pressure × radius / wall thickness), the cecum has the largest diameter and thinnest wall in the colon – making it the most vulnerable to perforation in closed-loop large bowel obstruction (when the ileocecal valve is competent).
- String of beads = Small gas pearls Strung along a fluid-filled bowel.
Recall: The “string of beads” sign on erect abdominal X-ray represents tiny gas bubbles trapped between the valvulae conniventes in a predominantly fluid-filled, distended small bowel loop.
- pylori = Hides in the antral mucus + forms Lymphoid follicles.
Recall: Helicobacter pylori is a curved/spiral, gram-negative, urease-positive organism that colonizes the gastric antrum (it favors the mucus layer over the epithelium).
- pylori = Group 1 = Guaranteed carcinogen for the stomach.
Recall: H. pylori is classified as a Group 1 (definite) carcinogen by the WHO/IARC for gastric adenocarcinoma and MALT lymphoma.
- CuRling = buRns; CuShing = Skull (brain injury).
Recall: Curling’s ulcers are stress ulcers associated with severe burns – they occur in the duodenum and stomach due to mucosal ischemia from hypovolemia and reduced mucosal blood flow.
- Giemsa Gets the H. pylori – both start with ‘G’ (Giemsa for the Germ).
Recall: Giemsa stain is the most commonly used special stain to highlight H. pylori in gastric biopsies – the organisms appear as dark blue curved rods on the mucosal surface.
- MALT = Mucosa invaded by Lymphocytes (lymphoepithelial lesions) = H. pylori-driven.
Recall: Gastric MALT (Mucosa-Associated Lymphoid Tissue) lymphoma is characterized by dense lymphocytic infiltrate with pathognomonic lymphoepithelial lesions (lymphocytes infiltrating and destroying glandular epithelium).
- Non-caseating granulomas + GI tract = Crohn’s until proven otherwise.
Recall: Granulomatous gastritis with non-caseating granulomas is most commonly associated with Crohn’s disease (which can affect any part of the GI tract, “mouth to anus”).