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59 Cards in this Set
- Front
- Back
Latissimus Dorsi Origin
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Iliac crest, lumbar fascia, spines of lowest 6 thoracic vertebrae, inferior angle of scapula, lower 3-4 ribs
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Latissimus Dorsi Insertion
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Medial to the bicipital groove of the humerus
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Latissimus Dorsi Nerve Supply
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Thoracodorsal Nerve - C6, C7, C8, posterior cord of brachial plexus
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Latissimus Dorsi Action
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Extends, adducts and medially (internally) rotates arm
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Latissimus Dorsi Blood Supply
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Thoracodorsal artery
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Trapezius Origin
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External occipital protuberance, superior nuchal line, ligamentum nuchae, spines of C7 and thoracic vertebrae.
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Trapezius Insertion
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Lateral clavicle, acromion, and scapular spine.
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Trapezius Nerve Supply
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Spinal Accessory Nerve (CN 11)
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Trapezius Action
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Raises/Lowers, adducts and rotates scapula
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Trapezius Blood Supply
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Transverse Cervical Artery (first part of the subclavian artery)
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Teres Major Origin
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Lower lateral border of the scapula
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Teres Major Insertion
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Medial to the bicipital groove of the humerus
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Teres Major Nerve Supply
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Lower Subscapular Nerve (C5/C6, posterior chord of the brachial plexus)
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Teres Major Action
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Adducts, extends and internally rotates arm
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Teres Major Blood Supply
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Circumflex Scapular Artery
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Rhomboid Major Origin
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T2/T5 spines
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Rhomboid Major Insertion
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Medial border of scapula at the infraspinous fossa
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Rhomboid Major Nerve Supply
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Dorsal Scapular Nerve (C5/C6 root)
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Rhomboid Major Action
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Pulls scapula medial - raises medial border of scapula
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Rhomboid Major Blood Supply
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Dorsal Scapular Artery (branch of the subclavian)
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Rhomboid Minor Origin
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C7 and T1 spines
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Rhomboid Minor Insertion
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Medial border of the scapula, at the spine
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Rhomboid Minor Nerve Supply
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Dorsal Scapular Nerve
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Rhomboid Minor Action
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Pulls scapula medial/raises medial border
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Rhomboid Minor Blood Supply
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Dorsal Scapular Artery (branch of subclavian)
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Levator Scapulae Muscle Origin
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Transverse processes of C1-C4
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Levator Scapulae Muscle Insertion
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Superomedial border of the scapula
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Levator Scapulae Muscle Nerve Supply
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Dorsal Scapular Nerve (C5 root)
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Levator Scapulae Muscle Action
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Raises scapula at medial border
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Levator Scapulae Blood Supply
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Dorsal Scapular Artery (branch of subclavian)
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Serratus Anterior Muscle Origin
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Ribs 1-8
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Serratus Anterior Muscle Insertion
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Inferior angle/medial border of the scapula
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Serratus Anterior Muscle Nerve Supply
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Long thoracic nerve (C5-C7 roots)
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Serratus Anterior Muscle Action
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Rotates scapula around thoracic cage - Stabilizer during abduction to allow humerus rotation at the glenoid fossa
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Serratus Anterior Muscle Blood Supply
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Lateral thoracic artery
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Winged Scapula
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Damage to the long thoracic nerve ("knife fight" injury)
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Triangle of Auscultation Boundaries
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Medial - Trapezius
Inferior - Latissimus Dorsi Lateral - Medial border of Scapular and rhomboid major Importance: Used for auscultation |
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Lumbar Triangle Boundaries + Significance
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Medial - Latissimus Dorsi
Lateral - External Oblique Inferior - Iliac Crest Importance: Lumbar Hernia |
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Quadrangular Space Boundaries
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Superior - Teres Minor
Lateral - Proximal Shaft of Humerus Inferior - Teres Major Medial - Long head of triceps brachii |
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Quadrangular Space Structures
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Axillary nerve, posterior circumflex humeral artery
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Triangular Space Boundaries
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Superior - teres minor
Inferior - teres major Lateral - long head of triceps brachii |
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Triangular Space Structures
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Circumflex Scapular Artery (of the subscapular artery)
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Triangular Interval Boundaries
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Superior - teres major
Lateral - lateral head of triceps brachii Medial - long head of triceps brachii |
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Triangular Interval Structures
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Deep Artery of the Arm (profunda brachii)
Radial Nerves (C5-C8, T1 - posterior chord of brachial plexus) |
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Axillary Artery Placement
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Continuation of the subclavian. Passes superior to 1st rib, ends inferior to teres major
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Lateral Thoracic Artery (Branch of Axillary Artery)
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Lateral Thoracic Artery (goes to the serratus anterior)
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Subscapular Artery (Branch of Axillary Artery)
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Thoracodorsal Artery (goes to the latissimus dorsi)
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Thyrocervical Trunk (Subclavian Artery) Supplies...
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Transverse Cervical artery (to trapezius)
Suprascapular artery (to supra- and infra-spinatus) |
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Dorsal Scapular Artery (Subclavian Artery) Supplies...
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Rhomboid Major and Minor, Levator scapulae
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Lower Subscapular Nerve (posterior chord of brachial plexus) Innervations
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C5, C7 - subscapularis muscle and teres major
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Upper Subscapular Nerve (posterior chord of brachial plexus) Innervations
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C5, C6 - Subscapularis Muscle
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Thoracodorsal Nerve (posterior chord of brachial plexus) Innervations
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C6-C8 - latissimus Dorsi
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Dorsal Scapular Nerve (from roots) Innervations
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Rhomboid Major and Minor, Levator Scapulae
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Long Thoracic Nerve (from roots) Innervations
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C5-C7 - serratus anterior muscle
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Suprascapular Nerve (from trunk) Innervations
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C5, C6 - supra- and infra-spinatus
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Spinal Accessory Nerve Innervations
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CN 11 - Trapezius
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Dorsal Rami of C4-T6
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Cutaneous Nerve - skin over trapezius
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Dorsal Rami of T7-T12
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Cutaneous Nerve - skin over latissimus dorsi and thoracolumbar fascia
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Dorsal Rami of L1-L3
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Skin superior to iliac crest (thoracolumbar fascia)
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