💀LAB: MSK Anatomy

Trapezius

table 1, 3

Latissimus dorsi

table 1, 3

I: intertubercular (bicipital) groove of humerus

Deltoid

table 1, 3

Rhomboid major

table 3

Rhomboid minor

table 3

Levator scapulae

table 3

Supraspinatus

table 1
O: supraspinous fossa of scapula
I: greater tubercle of humerus

Infraspinatus

table 1
O: infraspinous fossa of scapula
I: greater tubercle of humerus

Teres minor

table 1
O: mid-lateral border of scapula
I: greater tubercle of humerus

Subscapularis

table 1
O: subscapular fossa
I: lesser tubercle of humerus

Teres major

table 1

I: intertubercular (bicipital) groove of humerus

Serratus anterior

table 3

Serratus posterior superior

table 3, deep to rhomboid major

Serratus posterior inferior

table 3, deep to latissimus dorsi

Splenius capitis

table 3, connects to scalp

Splenius cervicis

table 3, connects to neck

Iliocostalis thoracis

table 3, pink color, most lateral of erector spinae

Iliocostalis cervicis

table 3, pink color, most lateral of erector spinae on neck

Longissimus thoracis

table 3, white color, intermediate erector spinae

Longissimus cervicis

table 3, white color, intermediate erector spinae at neck

Spinalis thoracis

table 3, most medial of erector spinal superior to spine

Pectoralis major

table 3
I: intertubercular (bicipital) groove of humerus

Pectoralis minor

table 3

Triceps brachii long head

table 1

Triceps brachii

table 1, radial n (C6-C8), elbow extension
I: olecranon process of elbow

Triceps brachii medial head

table 1

Triceps brachii lateral head

table 1

Biceps brachii long head

table 3, 7
O: supraglenoid tubercle above the glenoid cavity of the scapula
I: radial tuberosity

Biceps brachii short head

table 3, 7
O: coracoid process of the scapula
I: radial tuberosity

Biceps brachii

table 3, 7, musculocutaneous n (C5-C7), forearm supination/elbow flexion

Coracobrachialis

table 7

Brachialis

table 3, 7, musculocutaneous n (C5-C7)/radial n (C6-C8), elbow flexion

Brachioradialis

table 3, radial n (C5-C6), elbow flexion

Flexor carpi radialis

table 1
O: medial epicondyle of humerus

Pronator teres

table 1, median n (C6-C7), deep to superficial flexors
O: medial epicondyle of humerus

Palmaris longus

table 3
O: medial epicondyle of humerus

Flexor carpi ulnaris

table 1

O: medial epicondyle of humerus
I: olecranon process of ulna

Flexor digitorum superficialis

table 1, median n (C7-T1), PIP/MCP joint flexion digits 2-5
O: medial epicondyle of humerus

Flexor digitorum profundus

table 1, median nerve (digits 2-3), ulnar nerve (digits 4-5); DIP flexion digits 2-5
lies deep to the superficial flexors

Flexor pollicis longus

table 1, median n (C8-T1), thumb IP joint flexion

Pronator quadratus

table 1, median n (C8-T1), forearm pronation
lies deep to the flexor tendons

Extensor carpi radialis longus

table 5

Extensor carpi radialis brevis

table 5
O: lateral epicondyle of humerus

Extensor digitorum

table 5, radial n (C7-C8), MCP/DIP extension digits 2-5
O: lateral epicondyle of humerus

Extensor digiti minimi

table 5, radial n (C7-C8), extension 5th digit

O: lateral epicondyle of humerus

Extensor carpi ulnaris

table 5

O: lateral epicondyle of humerus

Extensor indicis

table 5, radial n (C7-C8), deep to extensor digitorum

Extensor pollicis longus

table 5, radial n (C7-C8), extension of thumb IP joint

Extensor pollicis brevis

table 5, radial n (C7-C8), extension of thumb MCP joint

Abductor pollicis longus

table 5, radial n (C7-C8), abduction of thumb CMC joint

Abductor pollicis brevis

table 5, thenar m, median n

Flexor pollicis brevis

table 7, thenar m, median n

Opponens pollicis

table 7, thenar m, median n

Adductor pollicis

table 7

Abductor digiti minimi

table 7, hypothenar m, ulnar n

Flexor digiti minimi

table 7, hypothenar m, ulnar n

Opponens digiti minimi

table 7, hypothenar m, ulnar n

Lumbricals

table 7, number them 1-4

Dorsal interosseous

table 5
number them 1-4

Supinator

table 5, radial n (C6-C7), deep to extensor tendons

O: lateral epicondyle of humerus

Lateral cord

table 7, terminal branches are musculocutaneous n and median n

Medial cord

table 7, terminal branches are ulnar n and median n

Posterior cord

table 7, terminal branches are axillary n and radial n

Axillary n

table 7, terminal branch of posterior cord into armpit
supplies deltoid and teres minor; C5-C6 ventral rami contributions only

Axillary a

table 7, crosses through brachial plexus

Axillary v

table 7

Brachial a

table 7

Brachial v

table 7

Radial a

table 7

Ulnar a

table 7

Cephalic v

table 5

Basilic v

table 5, closer to body

Musculocutaneous n

table 5, lateral cord terminal branch, supplies flexor compartment of arm

Median n

table 7, medial/lateral cord terminal branch
supplies flexor compartment of forearm, thenar mm, lumbricals 1 & 2

Ulnar n

table 7, medial cord terminal branch
supplies flexor carpi ulnaris, FDP tendons 3 & 4, rest of intrinsic hand mm

Radial n

table 7, posterior cord terminal branch
supplies all extensors of arm and forearm

Tensor fasciae latae

table 5, 7

Iliotibial tract

table 5, 7

Sartorius

table 5, 7

Piriformis

table 3

Obturator internus

table 3, below superior gemellus under sciatic n

Superior gemellus

table 3, below piriformis, under sciatic n

Inferior gemellus

table 3, below obturator internus

Quadratus femoris

table 3, below inferior gemellus

Rectus femoris

Quadriceps muscle, table 5,7

Vastus lateralis

Quadriceps muscle, table 5, 7

Vastus intermedius

Quadriceps muscle, lies beneath rectus femoris, table 5,7

Vastus medialis

Quadriceps muscle, table 5, 7

Tibialis anterior

table 7

Extensor hallucis longus

table 7, next to tibialis anterior

Extensor digitorum longus

table 7, next to extensor hallucis longus

Fibularis longus

table 7, (peroneus)

Fibularis brevis

table 7, deep to fibularis (peroneus) longus

Pectineus

table 7

Adductor magnus

table 5, 7, deepest muscle next to gracilis

Adductor longus

table 5, 7

Adductor brevis

table 5, 7

Gracilis

table 5, 7, most medial

Obturator externus

table 5, 7, deep, more medial next to pectineus

Gastrocnemius

table 3, superficial, has 2 heads