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Spine Anatomy
Upper Traps-Serratus Anterior
| Question | Answer |
|---|---|
| Upper Trap PA | External occipital protuberance, medial third of superior nuchal line, nuchal ligament. |
| Upper Trap DA | Lateral third of clavicle and acromion |
| Upper Trap N | CN XI: Spinal accessory nerve and VR C3, C4 |
| Upper Trap A | Elevates, adducts, and upwardly rotates scapula |
| Middle Trap PA | SP T1-5 |
| Middle Trap DA | Medial margin of acromion and superior lip of spine of scapula |
| Middle Trap N | CN XI: Spinal accessory nerve and VR C3, C4. |
| Middle Trap A | Adducts the Scapula |
| Lower Trap PA | SP T6-T12 |
| Lower Trap DA | Tubercle at apex of spine of scapula |
| Lower Trap N | CN XI: Spinal accesory nerve and VR C3, C4 |
| Lower Trap A | Depresses, adducts, upwardly rotates scapula |
| Latissimus Dorsi PA | SP T7-T12, thoracolumbar fascia, iliac crest, and inferior 4 ribs |
| Latissimus Dorsi DA | Floor of intertubercular groove of humerus |
| Latissimus Dorsi N | Thoracodorsal n. (C6, C7) |
| Latissimus Dorsi A | Extends, adducts, and internally rotates humerus. |
| Rhomboid Major and Minor PA | Major: SP T2-5, Minor: Nuchal ligament and SP C7, T1 |
| Rhomboid Major and Minor DA | Medial border of scapula from level of spine to inferior angle |
| Rhomboid Major and Minor N | Dorsal Scapular n. (C5) |
| Rhomboid Major and Minor A | Adducts, elevates, and downwardly rotates scapula. |
| Levator Scapulae PA | TP C1-4 |
| Levator Scapulae DA | Superior part of medial border of scapula |
| Levator Scapulae N | Dorsal scapular n. (C5) |
| Levator Scapulae A | Elevates and downwardly rotats scapula |
| Teres Major PA | Dorsal surface of inferior angle of scapula |
| Teres Major DA | Medial lip of intertubercular groove of humerus |
| Teres Major N | Lower subscapular n. (C6) |
| Teres Major A | Extends, adducts, and internally rotates humerus |
| Supraspinatus PA | Supraspinous fossa of scapula |
| Supraspinatus DA | Superior facet of greater tubercle of humerus |
| Supraspinatus N | Suprascapular n. (C5) |
| Supraspinatus A | Abducts humerus; depresses and compresses humeral head in glenoid. |
| Infraspinatus PA | Infraspinous fossa of scapula. |
| Infraspinatus DA | Middle facet of greater tubercle of humerus |
| Infraspinatus N | Suprascapular n. (C5) |
| Infraspinatus A | Externally rotates humerus; depresses and compresses humeral head in glenoid. |
| Teres Minor PA | Middle part of lateral border of scapula |
| Teres Minor DA | Inferior facet of greater tubercle of humerus |
| Teres Minor N | Axillary n. (C5) |
| Teres Minor A | Externally rotates humerus; depresses and compresses humeral head in glenoid. |
| Subscapularis PA | Subscapular fossa |
| Subscapularis DA | Lesser tubercle of humerus |
| Subscapularis N | Upper and lower subscapular n.'s (C6) |
| Subscapularis A | Internally rotates humerus; depresses and compresses humeral head in glenoid. |
| Pectoralis Major PA | Clavicular head: medial half of clavicle. Sternocostal head: sternum, superior 6 costal cartilages, and aponeurosis of external oblique muscle |
| Pectoralis Major DA | Lateral lip of intertubercular groove of humerus |
| Pectoralis Major N | Lateral and medial pectoral n.s (C6, C7, C8) |
| Pectoralis Major A | Adducts and internally rotates humerus. |
| Pectoralis Minor PA | 3rd to 5th ribs near their costal cartilages |
| Pectoralis Minor DA | Coracoid process of scapula |
| Pectoralis Minor N | Medial pectoral n. (C8, T1) |
| Pectoralis Minor A | Stabilizes scapula by drawing it inferiorly and anteriorly against the thoracic wall |
| Serratus Anterior PA | External surfaces of lateral parts of 1st to 8th ribs. |
| Serratus Anterior DA | Anterior surfaces of medial border of scapula |
| Serratus Anterior N | Long thoracic n. (C6-C7) |
| Serratus Anterior A | Abducts and upwardly rotates scapula; stabilizes the medial border of the scapula against thoracic wall. |
Created by:
txst spr 2009
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