Nuerovascular tracts of scapula and shoulder

Question 1

Scapular notch

Answer 1

Boundaries: Superior transverse scapular ligament

Transmitted structures: Suprascapular nerve (C5,C6)

(artery outside)

Question 2

_Spinoglenoid notch _

Answer 2

Boundaries: Inferior transverve scapular ligament

Transmitted structures: Suprascapular n.(C5,C6) and a.

Question 3

Triangular space

Answer 3

Boundaries: Teres minor (hypotenuse)

Teres major (base)

Long head of triceps brachii (height)

Transmitted structures: Circumflex scapular artery

Question 4

Quadrangular space

Answer 4

Boundaries: Teres minor (top)

Teres major (bottom)

Long head triceps brachii (medial)

Humerus (lateral)

Transmitted structures: Posterior circumflex artery

Axillary nerve (C5,C6)

Question 5

Medial border

Answer 5

Boundaries: Scapula

Transmitted structures: Dorsal scapular n.(C5) and a.

Question 6

Triceps hiatus

Answer 6

Boundaries: Teres major (top)

Humerus: (lateral)

Long head of triceps brachii: (medial)

Transmitted structures: Deep a. of arm

Radial nerve (C5,C6)

Question 7

Deltopectoral groove

Answer 7

Boundaries: Anterior deltoid (superior)

Pectoralis major-upper clavicular fibers (inferior)

Transmitted structure: Cephalic vein

Question 8

Walls of Axilla

Answer 8

Anterior: Pectoralis major and minor

Posterior: Serratus anterior

Medial: Latissimus dorsi, Teres major, Subscapularis

Lateral: Intertubicular groove

Question 9

Brachial Plexus

Answer 9

Levator scapulae: C3,C4 (C5)

Dorsal scapular: C5

Nerve to subclavius: C5,C6

Axillary: C5,C6

Upper subscapular: C5, C6

Lower subscapular: C5, C6

Suprascapular: C5, C6

Long Thoracic: C5-C7

Lateral Pectoral Nerve: C5-C7

Medial Pectoral Nerve: C8, T1

Thoracodorsal Nerve: C6-C8