Updated: January 25th, 2020

MSI ANATOMY LAB STRUCTURE LIST Upper Extremity

Upper Extremity Osteology

Scapula • Acromion Radius • Coracoid process • Head • Scapular spine • Neck • Supraspinous fossa • Radial Tuberosity • Infraspinous fossa • Subscapular fossa Ulna • Suprascapular notch • Olecranon • Glenoid Cavity • Trochlear notch • Supraglenoid tubercle • Coronoid process • Infraglenoid tubercle • Radial notch • Medial border • Ulnar tuberosity • Superior angle • Styloid process • Inferior angle Carpals Clavicle • Scaphoid • Acromial end • Lunate • Shaft • Triquetrum • Sternal end • Pisiform • Trapezium Humerus • Trapezoid • Head • Capitate • Greater tubercle • Hamate • Lesser tubercle • Styloid process • Intertubercular groove • Anatomical neck Metacarpals • Surgical neck • Head • Deltoid tuberosity • Base • Radial/spiral groove • Sesamoid bones • Condyles: o Capitulum/capitellum Phalanges o Trochlea • Head • Epicondyles (medial and lateral) • Base • Supracondylar ridges (medial and lateral) • Radial fossa • Coronoid fossa • Olecranon fossa • Groove for ulnar nerve

1 Updated: January 25th, 2020

Lab 7: Anterior Shoulder and Posterior Shoulder

Posterior Shoulder

Muscles Anterior Shoulder • Trapezius • Rhomboid major Muscles • Rhomboid minor • Pectoralis major • Levator scapulae • Pectoralis minor • Deltoid • Serratus anterior • Teres major • Deltoid • Triceps brachii (lateral, medial and long heads) Nerves • Rotator cuff (SITS Muscles) o Supraspinatus Medial Pectoral nerve o Infraspinatus • o Teres minor • Lateral Pectoral nerve o Subscapularis Vessels Nerves • Lateral thoracic artery • (Spinal) accessory nerve/CN XI • Thoraco-acromial artery • Axillary nerve • Cephalic vein • Suprascapular Nerve • Basilic vein • Radial Nerve • Median cubital vein

Vessels Deltopectoral Triangle/Groove • Deltoid • Posterior circumflex humeral artery • Pectoralis major • Posterior circumflex humeral vein • Clavicle • Transverse cervical artery • Cephalic vein • Suprascapular artery • Profunda brachii artery (deep artery of the arm)

Quadrangular Space • Superior: teres minor • Inferior: teres major • Medial: long head of triceps brachii • Lateral: humerus • Posterior circumflex humeral and axillary nerve

Triceps Hiatus • Superior: teres major • Medial: long head of triceps brachii • Lateral: Humerus

• Deep brachial artery and radial nerve

2 Updated: January 25th, 2020

Lab 7: Glenohumeral (Shoulder) Joint

• Subacromial bursa • Glenohumeral joint • Acromioclavicular Joint • Glenoid labrum • Acromioclavicular ligament • Fibrous joint capsule • Coracoacromial ligament • Coracoclavicular ligament

Labs 8 and 9: Axilla, Brachial Plexus, Neck Triangles, and Cervical Plexus

Muscles • Posterior cord • Pectoralis major o Radial nerve • Pectoralis minor o Axillary nerve • Latissimus dorsi o Thoracodorsal nerve • Teres major o Upper subscapular nerve • Subscapularis o Lower subscapular nerve • Serratus anterior • Long thoracic nerve • Coracobrachialis • Dorsal scapular nerve • Trapezius muscle • Suprascapular nerve • Accessory nerve • Sternocleidomastoid • Phrenic nerve • Anterior and middle scalene muscles • Ansa cervicalis • Infrahyoid Muscles • Inferior & Superior bellies of Vessels the omohyoid muscle • Subclavian artery • Sternohyoid • Subclavian vein • Sternothyroid • Axillary artery (1st, 2nd, 3rd parts) • Thyrohyoid • Thoracoacromial artery • Lateral thoracic artery Nerves • Subscapular artery • Brachial plexus rami • Posterior circumflex humeral artery • Superior, middle, and inferior trunks • Anterior circumflex humeral artery • Lateral root of the median nerve • Brachial artery • Medial root of the median nerve • Circumflex scapular artery • Medial cord • Thoracodorsal artery o Medial pectoral nerve • Deep brachial artery o Medial cutaneous nerve of the • Transverse cervical artery forearm (medial antebrachial • Suprascapular artery cutaneous nerve) • Axillary vein Medial cutaneous nerve of the o • Cephalic vein arm (medial brachial cutaneous nerve) Spaces o Ulnar nerve • Posterior Triangle o Subclavian (supraclavicular or • Lateral cord omoclavicular) triangle o Lateral pectoral nerve o Interscalene triangle Musculocutaneous nerve o

• Anterior Triangle

o Muscular triangle

3 Updated: January 25th, 2020

Lab 10: Arm and Cubital Fossa

Muscles Nerves • Coracobrachialis • Musculocutaneous nerve • Biceps brachii • Axillary nerve o Long head • Median nerve o Short head • Radial nerve (passing through triceps o Bicipital aponeurosis hiatus) • Brachialis o Superficial branch of radial nerve • Pronator teres o Deep radial nerve o Humeral head • Ulnar nerve o Ulnar head • Median nerve • Supinator o Anterior interosseous nerve • Triceps brachii o Long head Spaces o Lateral head • Cubital fossa o Medial head • Cubital tunnel • Anconeus • Triceps hiatus (triangular interval • Brachioradialis • Quadrangular space

Vessels • Brachial artery • Profunda brachii (deep brachial artery) • Brachial artery bifurcation o Radial artery o Ulnar artery • Cephalic vein • Basilic vein • Median cubital vein

Lab 10: Elbow Joint

Ligaments • Annular ligament • Ulnar collateral ligament • Radial collateral ligament

4 Updated: January 25th, 2020

Lab 11: Anterior (Flexor Forearm) and Palm of Hand

Anterior Forearm Palm of Hand

Muscles Muscles • Brachioradialis • Palmaris longus • Palmaris longus • Flexor digitorum superficialis • Wrist flexors • Flexor digitorum profundus o Flexor carpi radialis • Flexor pollicis longus o Flexor carpi ulnaris • Thenar muscles: o Long digital flexors o Abductor pollicis brevis § Flexor digitorum superficialis o Flexor pollicis brevis § Flexor digitorum profundus o Opponens pollicis § Flexor pollicis longus • Pronators • Lumbrical muscles (1-4) o Pronator teres • Adductor pollicis o Pronator quadratus • Palmar interosseous muscles • Dorsal interosseous muscles Vessels • Radial artery Vessels • Ulnar artery • Superficial palmar arterial arch • Common interosseous artery • Deep palmar arterial arch o Anterior interosseous artery • Ulnar artery o Posterior interosseous artery • Radial artery • Superficial palmar arch Nerves • Common palmar digital artery • Median nerve • Proper (palmar) digital artery o Anterior interosseous nerve • Deep palmar arch • Ulnar nerve • Radial nerve Nerves o Superficial branch of radial nerve • Ulnar nerve o Deep radial nerve o Superficial branch § Common palmar digital branch ulnar n. § Proper (palmar) digital branch ulnar n. o Deep branch

• Median nerve o Recurrent median nerve o Common palmar digital branch median n. o Proper digital (palmar) branch median n.

5 Updated: January 25th, 2020

Lab 12: Posterior (Extensor) Forearm and Dorsum of Hand

Superficial Layer • Brachioradialis • Extensor carpi radialis longus • Extensor carpi radialis brevis • Extensor digitorum • Extensor digiti minimi • Extensor carpi ulnaris

Deep Layer • Abductor pollicis longus • Extensor pollicis brevis • Extensor pollicis longus • Extensor indicis • Supinator • Dorsal interossei • Lumbricals (1-4) • Extensor expansion

Nerves • Radial nerve o Superficial branch of radial nerve o Deep radial nerve § Posterior interosseous nerve

Arteries • Radial a. (in anatomical snuffbox) • Ulnar a. o Common interosseous a. § Anterior interosseous a. § Posterior interosseous a.

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