Superior Orbital Fissure (SOF) is a cleft between greater and lesser wing of sphenoid which connects orbit and middle cranial fossa. It is divided into 3 compartments by the tendinous ring (annulus of Zinn). Superior orbital fissure alone (Lateral compartment): Mnemonic: LFTS Superior orbital fissure in tendinous ring (Intermediate compartment):…
Tag: Anatomy
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Paranasal sinus drainage in Nasal cavity : Mnemonic
Lateral wall of nasal cavity has: Mnemonic: SPIN 1. Superior meatus: Posterior ethmoidal sinus 2. Inferior meatus: Nasolacrimal duct The sphenoidal sinus drains into spheno-ethmoidal recess (superior to superior concha). All others drain into middle meatus: Mnemonic: AM/FM
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Spermatic Cord : Mnemonics
Spermatic cord enters the inguinal canal through the deep inguinal ring and passes out through the superficial inguinal ring. 3 Coverings Mnemonic: ICE TIE Layer Origin Internal spermatic fascia Transversalis fascia Cremasteric fascia Internal oblique External spermatic fascia External oblique aponeurosis Contents 1. 3 Arteries: Mnemonic: ABCD Arteries – 2….
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Coronary Arteries : Mnemonic
Right coronary artery (RCA) Course: Branches: Mnemonic: TRaP Me IN Large: Small: Left coronary artery (LCA) Course: Branches: Mnemonic: LaTe PAD Large: Left Anterior Descending (LAD) artery – Small: Arterial supply of conducting system of heart 1. RCA: SA node, AV node, AV bundle 2. LCA: Right bundle branch of…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Venous Drainage of Heart : Mnemonic
Mnemonic: CAT 1. Coronary sinus (50%): Drains blood from left side of heart → Thebesian valve → Right Atrium 2. Anterior cardiac veins (20%): Drain blood from right side of heart → Right Atrium 3. Thebesian veins/Venae cordis minimi (30%): Drain deoxygenated blood from endocardium and myocardium → Respective chamber…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Transpyloric Plane : Mnemonic
Synonyms: Addison’s plane Definition: An imaginary horizontal line (halfway between suprasternal notch and pubic symphysis) through the L1 vertebra, a line that is important when performing radiographic imaging studies. Structures lying in transpyloric plane: Mnemonic: TRANSPYLORIC
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Bronchopulmonary segments : Mnemonic
Features of Bronchopulmonary segments: Right Lung Mnemonic: A PALM Seed Makes Another Little Palm (from top to bottom) 1. Superior lobe: 2. Middle lobe: 3. Inferior lobe: Left Lung Instead of lateral and medial segment as described in middle lobe of right lung, the left lung lingula has: Some books…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Hilar Arrangement in Lungs, Liver, Kidneys : Mnemonic
Hilum is an indentation in the surface of a kidney, spleen, or other organ, where blood vessels, ducts, nerve fibers, etc. enter and leave it. Hilum of Lung Mnemonic: VAD (from anterior to posterior) Hilum of Liver (Porta Hepatis) Mnemonic: DAVE (from anterior to posterior) Hilum of Kidney Mnemonic: VAD…