General Anatomy Flashcards
Supraspinatus OIAN
O: Superior scapula
I: Superior facet of greater tuberosity of humerus
A: abduction, first 30 degrees, then again over 90 degrees
N: Suprascapular n. C5,6
Infraspinatus OIAN
O: Inferior scapula
I: Middle facet of greater tuberosity
A: external rotation - primary
N: Suprascapular n. C5,6
Teres Minor OIAN
O: lateral border of scapula
I: inferior facet of greater tuberosity
A: Primary adduction, Secondary external rotation
N: Axillary n. C5,6
Subscapularis OIAN
O: Anterior scapula
I: Lesser tuberosity
A: internal rotation
N: upper and lower subscapular n. C5,6
Quadrangular space borders & contents
Superior: teres minor
Inferior: teres major
Medial: long head of biceps
Lateral: humerus
Contents: axillary nerve and posterior humeral circumflex artery
Triangular space borders and contents
Superior: teres minor
Inferior: teres major
lateral: long head of biceps
Contents: circumflex scapular artery
Triangular interval borders and contents
Superior: teres major
Medial: long head of triceps
Lateral: medial head of triceps
Contents: radial nerve in spiral groove and profunda brachii artery
Axilla borders
Anterior: pectoralis major
Posterior: teres major & latissimus dorsi
Lateral: humerus (floor of intertubercular groove)
Medial: serratus anterior
Cubital fossa borders and contents
Floor: brachialis and supinator
Roof: bicipital aponeurosis
Lateral: brachioradialis
Medial: pronator teres
Superior: imaginary line between M & L epicondyles of humerus
Contents from M—> L
-Median nerve, Brachial artery, biceps tendon, radial nerve
Petits triangle borders
Medial: latissimus dorsi
Inferior: iliac crest
Lateral: external oblique
Anatomical snuffbox borders and contents
Floor: scaphoid
Lateral: most lateral - abductor pollicis longus, then extensor pollicis brevis
Medial: extensor pollicis brevis
Contents: radial artery
Site of radial pulse = lateral to flexor carpi radialis
Femoral triangle borders and contents
Lateral: sartorius
Medial: adductor longus
Superior: inguinal ligament
Contents from M—> L
-femoral vein, artery, then nerve
Femoral vein and artery are in femoral sheath
Femoral nerve is outside the sheath
Adductor canal borders and contents
Lateral: vastus medialis
Posteriomedial: adductor longus and magnus
Anterior: sartorius
Contents: femoral vein, femoral artery, saphenous nerve
What separates the greater and lesser sciatic notches?
Ischial spine
The sciatic notches transform into sciatic foramenae via what structure?
Sacrospinous ligaments
Contents of greater sciatic foramen
Piriformis Muscle
Nerves: (SNNIPPS)
1. Superior gluteal nerve + artery
2. Nerve to obturator internus -also innervates sup. Gemellus
3. Nerve to quadratus femoris -innervates inf gemellus too
4. Inferior gluteal nerve
5. Pudendal nerve
6. Posterior femoral cutaneous nerve
7. Sciatic nerve
Contents of lesser sciatic foramen
PIANO
Pudendal nerve
Internal pudendal Artery
Nerve to Obturator internus
Muscle: Obturator internus
