Mss Test 1

Front 1

Latissimus Dorsi Origin

Back 1

Iliac crest, lumbar fascia, spines of lowest 6 thoracic vertebrae, inferior angle of scapula, lower 3-4 ribs

Front 2

Latissimus Dorsi Insertion

Back 2

Medial to the bicipital groove of the humerus

Front 3

Latissimus Dorsi Nerve Supply

Back 3

Thoracodorsal Nerve - C6, C7, C8, posterior cord of brachial plexus

Front 4

Latissimus Dorsi Action

Back 4

Extends, adducts and medially (internally) rotates arm

Front 5

Latissimus Dorsi Blood Supply

Back 5

Thoracodorsal artery

Front 6

Trapezius Origin

Back 6

External occipital protuberance, superior nuchal line, ligamentum nuchae, spines of C7 and thoracic vertebrae.

Front 7

Trapezius Insertion

Back 7

Lateral clavicle, acromion, and scapular spine.

Front 8

Trapezius Nerve Supply

Back 8

Spinal Accessory Nerve (CN 11)

Front 9

Trapezius Action

Back 9

Raises/Lowers, adducts and rotates scapula

Front 10

Trapezius Blood Supply

Back 10

Transverse Cervical Artery (first part of the subclavian artery)

Front 11

Teres Major Origin

Back 11

Lower lateral border of the scapula

Front 12

Teres Major Insertion

Back 12

Medial to the bicipital groove of the humerus

Front 13

Teres Major Nerve Supply

Back 13

Lower Subscapular Nerve (C5/C6, posterior chord of the brachial plexus)

Front 14

Teres Major Action

Back 14

Adducts, extends and internally rotates arm

Front 15

Teres Major Blood Supply

Back 15

Circumflex Scapular Artery

Front 16

Rhomboid Major Origin

Back 16

T2/T5 spines

Front 17

Rhomboid Major Insertion

Back 17

Medial border of scapula at the infraspinous fossa

Front 18

Rhomboid Major Nerve Supply

Back 18

Dorsal Scapular Nerve (C5/C6 root)

Front 19

Rhomboid Major Action

Back 19

Pulls scapula medial - raises medial border of scapula

Front 20

Rhomboid Major Blood Supply

Back 20

Dorsal Scapular Artery (branch of the subclavian)

Front 21

Rhomboid Minor Origin

Back 21

C7 and T1 spines

Front 22

Rhomboid Minor Insertion

Back 22

Medial border of the scapula, at the spine

Front 23

Rhomboid Minor Nerve Supply

Back 23

Dorsal Scapular Nerve

Front 24

Rhomboid Minor Action

Back 24

Pulls scapula medial/raises medial border

Front 25

Rhomboid Minor Blood Supply

Back 25

Dorsal Scapular Artery (branch of subclavian)

Front 26

Levator Scapulae Muscle Origin

Back 26

Transverse processes of C1-C4

Front 27

Levator Scapulae Muscle Insertion

Back 27

Superomedial border of the scapula

Front 28

Levator Scapulae Muscle Nerve Supply

Back 28

Dorsal Scapular Nerve (C5 root)

Front 29

Levator Scapulae Muscle Action

Back 29

Raises scapula at medial border

Front 30

Levator Scapulae Blood Supply

Back 30

Dorsal Scapular Artery (branch of subclavian)

Front 31

Serratus Anterior Muscle Origin

Back 31

Ribs 1-8

Front 32

Serratus Anterior Muscle Insertion

Back 32

Inferior angle/medial border of the scapula

Front 33

Serratus Anterior Muscle Nerve Supply

Back 33

Long thoracic nerve (C5-C7 roots)

Front 34

Serratus Anterior Muscle Action

Back 34

Rotates scapula around thoracic cage - Stabilizer during abduction to allow humerus rotation at the glenoid fossa

Front 35

Serratus Anterior Muscle Blood Supply

Back 35

Lateral thoracic artery

Front 36

Winged Scapula

Back 36

Damage to the long thoracic nerve ("knife fight" injury)

Front 37

Triangle of Auscultation Boundaries

Back 37

Medial - Trapezius
Inferior - Latissimus Dorsi
Lateral - Medial border of Scapular and rhomboid major
Importance: Used for auscultation

Front 38

Lumbar Triangle Boundaries + Significance

Back 38

Medial - Latissimus Dorsi
Lateral - External Oblique
Inferior - Iliac Crest
Importance: Lumbar Hernia

Front 39

Quadrangular Space Boundaries

Back 39

Superior - Teres Minor
Lateral - Proximal Shaft of Humerus
Inferior - Teres Major
Medial - Long head of triceps brachii

Front 40

Quadrangular Space Structures

Back 40

Axillary nerve, posterior circumflex humeral artery

Front 41

Triangular Space Boundaries

Back 41

Superior - teres minor
Inferior - teres major
Lateral - long head of triceps brachii

Front 42

Triangular Space Structures

Back 42

Circumflex Scapular Artery (of the subscapular artery)

Front 43

Triangular Interval Boundaries

Back 43

Superior - teres major
Lateral - lateral head of triceps brachii
Medial - long head of triceps brachii

Front 44

Triangular Interval Structures

Back 44

Deep Artery of the Arm (profunda brachii)
Radial Nerves (C5-C8, T1 - posterior chord of brachial plexus)

Front 45

Axillary Artery Placement

Back 45

Continuation of the subclavian. Passes superior to 1st rib, ends inferior to teres major

Front 46

Lateral Thoracic Artery (Branch of Axillary Artery)

Back 46

Lateral Thoracic Artery (goes to the serratus anterior)

Front 47

Subscapular Artery (Branch of Axillary Artery)

Back 47

Thoracodorsal Artery (goes to the latissimus dorsi)

Front 48

Thyrocervical Trunk (Subclavian Artery) Supplies...

Back 48

Transverse Cervical artery (to trapezius)
Suprascapular artery (to supra- and infra-spinatus)

Front 49

Dorsal Scapular Artery (Subclavian Artery) Supplies...

Back 49

Rhomboid Major and Minor, Levator scapulae

Front 50

Lower Subscapular Nerve (posterior chord of brachial plexus) Innervations

Back 50

C5, C7 - subscapularis muscle and teres major

Front 51

Upper Subscapular Nerve (posterior chord of brachial plexus) Innervations

Back 51

C5, C6 - Subscapularis Muscle

Front 52

Thoracodorsal Nerve (posterior chord of brachial plexus) Innervations

Back 52

C6-C8 - latissimus Dorsi

Front 53

Dorsal Scapular Nerve (from roots) Innervations

Back 53

Rhomboid Major and Minor, Levator Scapulae

Front 54

Long Thoracic Nerve (from roots) Innervations

Back 54

C5-C7 - serratus anterior muscle

Front 55

Suprascapular Nerve (from trunk) Innervations

Back 55

C5, C6 - supra- and infra-spinatus

Front 56

Spinal Accessory Nerve Innervations

Back 56

CN 11 - Trapezius

Front 57

Dorsal Rami of C4-T6

Back 57

Cutaneous Nerve - skin over trapezius

Front 58

Dorsal Rami of T7-T12

Back 58

Cutaneous Nerve - skin over latissimus dorsi and thoracolumbar fascia

Front 59

Dorsal Rami of L1-L3

Back 59

Skin superior to iliac crest (thoracolumbar fascia)