High Yield Anatomy all systems

ekadar's version from 2017-02-25 08:23


Question Answer
Flattened DeltoidAxillary nerve
Wrist DropRadial nerve in Spiral groove or Axilla
Arm held flexed and pronatedDeep branch of the Radial nerve
Claw hand (Extended MCP, Flexed IP in 4th/5th fingers)Ulnar nerve
Hypothenar wastingUlnar nerve
Ape hand (Unopposable thumb)Recurrant branch of Median
Hand of Benediction when making a fist (Can't flex fingers 2+3)Median
Carpal Tunnel (numb first 3.5 fingers)Median
Can't bend armMusculocutaneous n.
Weak pincers of thumb and index fingerAnterior Interosseus Nerve
Winged ScapulaLong thoracic (Nothing connecting to Serratus)
Waiter's Tip (Arm by side, medial rotated and pronated)Erb Duchenne Palsy (C5-C6)
Claw hand, Ulnar atrophy, Lose radial pulse with head turnKlumpke palsy (C8-T1)
Anterior shoulder injury damages which nerve and artery?Axillary nerve
Posterior Circumflex artery
Mid shaft of humerusRadial nerve
Surgical Neck of humerusAxillary nerve
Can't kick a ballFemoral nerve
Can't climb up stairsInferior gluteal n.
Trendelenberg gait (hip drops on on good foot)Superior gluteal N.
Herniated DiscSciatic N.
Foot DropFibular (Common Peroneal): Common and deep
Can't stand on Toes (decreased plantar flexion)Tibial
Fracture of neck of FibulaCommon Fibular
Habitual leg crossingCommon Peroneal (Fibular)
saturday night palsy or injury from crutchesradial nerve injury (wrist drop)
anterior dislocation of hipobturator nerve
supracondylar humerus fracturemedian
midshaft break of humerus (artery damaged?)brachial artery
loss of forearm pronationmedian
cannot adduct abduct fingersulnar nerve
weak external rotation of armaxillary
unable to abduct beyond ten degreesaxillary

SITS / Rotator Cuff

Question Answer
abducts arm initially (before the action of the deltoid)Supraspinatus
supraspinatus nerve?suprascapular nerve
most common rotator cuff injurysupraspinatu


lateral rotates arm :ƒƒ Infraspinatus
Question Answer
pitching injuryinfraspinatus
infraspinatus nerve?suprascpular n
adducts, laterally rotates armteres minor
teres minor nerve?axillary n
medially rotates, adducts arm :ƒƒ Subscapularis

GI High Yield Blood Vessels

Question Answer
Proximal Lesser Curvature of the stomachleft gastric
distal lesser curvatureright gastric
proximal greater curvatureleft gastroepiploic
distal greater curvatureright gastroepiploic
proximal greater curvature above splenic arteryshort gastric
artery supplies proximal 1/3 of ureterrenal artery

Sensory nerve roots

Question Answer
nerve root supplying sensory to anterior thighL3/L4
nerve root supplying lateral calf + bet big toe and second toeL5
nerve root supplying back/outside of anklesS1
nerve root in sciaticaS1

Portosystemic Anastomoses

Question Answer
clinical sign of esophageal anastomosisesophageal varices
left gastric to esophagealesophagus
paraumbilical to small epigastricumbilicus
clinical sign of umbilical anatastomosiscaput medusae
clinical sign of rectal anastomose sanorectal varices
superior rectal to middle and inferior rectalrectum
portal vein to IVC pre-hepaticTIPS
portal tributary to left renal veinTIPS
portal vein to hepatic veinTIPS
Risk of TIPShepatic encephalopathy and hyperammoniemia

Cardiac Anatomy

Question Answer
LAD comes off ofleft coronary artery
left circumflex suppliesleft atrium
dilated in pulmonary hypertensioncoronary sinus
right dominant circulationPDA comes off the RCA
left dominant circulationPDA comes off of the circumflex


Question Answer
upper 1/3 esophagus drains tocervical nodes
middle 1/3 esophagus drains tomediastinal nodes
lower 1/3 esophagus drains toceliac and gastric nodes
Upper back drains toAxillary LN
Lateral breast drains toAxillary LN
Stomach drains toCeliac LN
Duodenum drains toSuperior mesenteric LN
Jejunum drains toSuperior mesenteric LN
Sigmoid colon drains toColic → inferior mesenteric LN
Rectum drains toPara-rectal LN
Upper Anal canal (above pectinate line) drains toInternal iliac LN
Lower Anal canal (below pectinate line) drains toSuperficial inguinal LN
Testes drain toSuperficial & deep plexuses → para-aortic LN
[Remember: testes descend] so they are internal
Scrotum drains toSuperficial inguinal LN
Thigh drains toSuperficial inguinal [Remember the thigh is superficial]
Lateral dorsum of foot drains toPopliteal
Right arm drains toRight lymphatic duct
Right head drains toRight lymphatic duct


Question Answer
Right lymphatic duct drainsRight arm
Right chest
Right half of head
Thoracic ductEverything except the Right arm, Right chest, and Right side of head
Cervical LN drainsHead and Neck
Axillary LN drainUpper back
Celiac LN drainsStomach
Upper duodenum
Superior mesenteric LN drainsDuodenum
Inferior Mesenteric LN drainsColon after Splenic Flexure
Upper Rectum
Internal iliac drainsLower rectum - Upper anal canal
Vagina (middle)
Para-Aortic LN drainsTestes
Ovaries and Uterus
Superficial Inguinal LN drainsThigh
Lower Anal canal
Popliteal drainsDorsolateral foot
Posterior calf

Femoral/inguinal region

Question Answer
Organization of structures at femoral triangleLateral→Medial
NAVEL: nerve, artery, vein, empty space, lymphatics
Femoral sheathcontains femoral vein, artery, and deep inguinal lymph nodes - NOT the femoral n.
Located 3-4 cm below the inguinal ligament
Femoral ring mediallacunar ligament
Femoral ring anterioringuinal ligament
Femoral ring posteriorpubis
Femoral ring laterallyfemoral vein
Femoral sheath containsfemoral artery, vein and canal
Pathway of femoral herniaexits abdominal cavity through femoral ring to enter femoral canal
Direct herniathrough abdominal wall. through external inguinal ring only. covered only by spermatic external fascia. in old men
Order of muscles from deep to superficialRectus abdominis, pyramidalis, transversus abdominis, internal oblique, aponeurosis of external oblique muscle
Indirect herniaprotrusion through internal inguinal ring, external (superficial) inguinal ring, into scrotum. occurs in infants because of failure of processus vaginalis to close. all three layers of spermatic fascia
Femoral herniaProtrudes below inguinal ligament through femoral canal below and lateral to pubic tubercle
More common in women
Leading cause of bowel incarceration
Diaphragmatic herniaMost commonly a hiatal hernia: stomach herniates upwards through esophageal hiatus of the diaphragm
Sliding hiatal herniaMC diaphragmatic hernia
GE junction is displaced superiorly - "hourglass stomach"
Paraesophageal herniaGE junction is normal.
Fundus protrudes into the thorax
MDs dont LIeMedial to inferior epigastric artery= Direct hernia; Lateral to inferior epigastric artery=Indirect hernia
Weakness of the tranversalis fasciaDirect Hernia
Persistent processus vaginalis and failure of internal inguinal ring to closeindirect hernia