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53 Cards in this Set

  • Front
  • Back
Trapezius Muscle Insertion
- Upper fibers: lateral 3rd of clavicle, acromion, spine of scapula
- Lower fibers: medial (tubercle) spine of scapula
Trapezius Muscle Origin
- Superior Nuchal Line
- External Occipital Protuberance
- Ligamentum nuchae
- Spinous processes of CV7-TV12
Trapezius Muscle Innervation
- Accessory nerve (CN11/XI)
- C3 and C4
Trapezius Muscle Action
- Upper fibers: elevate shoulder
- Middle fibers: retract shoulder
- Upper and lower fibers: rotate scapula for arm abduction
Trapezius Muscle Blood Supply
- Transverse/superior cervical arteries
Latissimus Dorsi Origin
- Spinous processes of TV-7 down to back of sacrum (fuses to tendon of erector spinae muscles posterior to sacrum & posterior lamella of thoracolumbar fascia in lumbar region)
- Inferior angle of scapula
- Iliac crest
- Lower ribs
Latissimus Dorsi Insertion
- Lesser tubercular ridge
- Intertubercular sulcus
Latissimus Dorsi Action
- Extends humerus
- Adducts humerus
- Medial rotation of humerus
Latissimus Dorsi Innervation
- Thoracodorsal nerve
(runs with thoracodorsal vessels)
Latissimus Dorsi Blood Supply
- Thoracodorsal vessels
(runs with thoracodorsal nerve)
Levator Scapulae Origin
- Transverse processes of CV1-CV4
Levator Scapulae Insertion
- Vertebral border of scapula above spine of scapula
Levator Scapulae Action
- Elevates scapula
Levator Scapulae Innervation
- C3 & C4 of cervical plexus
- Dorsal scapular nerve
Levator Scapulae Blood Supply
- Dorsal scapular vessels
Rhomboideus Major Origin
- Spinous process of CV7-TV4
Rhomboideus Major Insertion
- Verterbral border of scapula below spine of scapula
Rhomboideus Major Action
- Pulls scapulae toward each other, retracting the shoulder
Rhomboideus Major Innervation
- Dorsal scapular nerve
Rhomboideus Major Blood Supply
- Dorsal scapular vessels
Rhomboideus Minor Origin
- Ligamentum nuchae and spinous process of CV7
Rhomboideus Minor Insertion
- Vertebral border of scapula at the spine of scapula
Rhomboideus Minor Action
- Pulls scapulae toward each other, retracting the shoulder
Rhomboideus Minor Innervation
- Dorsal scapular nerve
Rhomboideus Minor Blood Supply
- Dorsal scapular vessels
Serratus Posterior Superior/Inferior Origin
- Spinous processes
Serratus Posterior Superior/Inferior Insertion
- Ribs
Serratus Posterior Superior/Inferior Action
- Inspiration
Serratus Posterior Superior/Inferior Innervation
- Intercostal nerves
Serratus Posterior Superior/Inferior Blood Supply
- Intercostal arteries
Pectoralis Major Origin
- Medial half of clavicle
- Costal cartilage of ribs 2-5
- Sternum
- Upper rectus sheath
Pectoralis Major Insertion
- Greater tubercular ridge of humerus
Pectoralis Major Action
- Adducts humerus
- Flex shoulder joint
- Medially rotates humerus
Pectoralis Major Innervation
- Lateral and medial pectoral nerves (same as breast)
Pectoralis Major Blood Supply
- Thoracoacromial trunk
- Lateral thoracic artery
- Anterior perforating branches of internal thoracic artery
- Perforating branches of intercostal arteries
Pectoralis Minor Origin
- Ribs 2-4 or 3-5
Pectoralis Minor Insertion
- Coracoid process of scapula
Pectoralis Minor Action
- Depress shoulders
- Protract shoulders
Pectoralis Minor Innervation
- Medial pectoral nerve
Subclavius Origin
- Junction of first rib to its costal ligament
Subclavius Insertion
- Groove on middle third of clavicle
Subclavius Action
- Depresses clavicle
- Stabilizes sternoclavicular joint
Subclavius Innervation
- Upper trunk of brachial plexus (subclavian nerve)
External Intercostal Origin
- Inferior surface of upper rib
External Intercostal Insertion
- Superior surface of lower rib
External Intercostal Action
- Inspiration
External Intercostal Innervation
- T1-T11
Internal Intercostal Origin
- Superior surface of lower rib
Internal Intercostal Insertion
- Inferior surface of upper rib
Internal Intercostal Action
- Expiration
Internal Intercostal Innervation
- T1-T11
Innermost Intercostal Action
- Expiration
Innermost Intercostal Innervation
- T1-T11