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Lab 1
| Question | Answer |
|---|---|
| THORACOLUMBAR FASCIA | O: Inferior bilaterally to medial aspects iliac crest I: Mid to spinous process from sacrum to T6 |
| LATISSIMUS DORSII | O: Thorocolumbar fascia and medial aspects iliac crest I: Neck of the humerus N: THORACODROSAL NERVE F: Pulls shoulder into adduction, slightly extension, adducts humerus |
| EXTERNAL ABDOMINAL OBLIQUE | O: Lower ribs I: Iliac crest, lateral to O of latissimus dorsii |
| TRIANGLE OF AUSCULTATION | a. Lateral margin of trapezius b. Superior margin of latissimus dorsii c. Medial edge of scapula d. F: Provides good auscultation area |
| TRAPEZIUS MUSCLE | Midline from spinous process T12 to external occipital protuberance I: Spine of the scapula, acromion of scapula, and clavicle N: SPINAL ACCESSORY NERVE Superior: occipital bone/cervical spine (function: elevation of scapula) Middle: horizontally upp |
| NUCHAL LIGAMENT | -Runs from external occipital protuberance and T2/T3 spinous process -Connects each cervical vertebra |
| LUMBAR TRIANGLE | -Medially by latissimus dorsi -Laterally by external abdominal oblique muscle -Inferiorly by iliac crest |
| GREATER OCCIPITAL NERVE | O: Originates posterior ramus of C2 F: Cutaneous innervation |
| SPINAL ACCESSORY NERVE (CRANIAL NERVE XI) | O: Skull I: Trapezius muscle underneath the sternocleidomastoid muscle F: innervates trazpezius |
| LEVATOR SCAPULAE | O: Transverse process C1-C4 I: Superiomedia, border of the scapula N: Dorsal scapular nerve- C5 branch of ventral rami F: upward rotation (lifting axe) elevates scapula |
| RHOMBOID MAJOR | O: Spinous process T2-T5 I: Scapular spine to inferior angle of scapula N: Dorsal scapular nerve F: Downward rotation of scapula (using axe assists in retraction of scapula |
| RHOMBOID MINOR | O: Nuchal ligament spinous process C7-T1 I: Scapular spine? N: Dorsal scapular nerve F: Downward rotation of scapula (using axe) assists in retraction of scapula |
| Dorsal scapular artery/nerve (C5) | -In connective tissue just deep to levator scapulae and rhomboids immediately medial to attach to scapula's medial border |
| Serratus posterior superior muscle | O: Arises through an aponeurosis from nuchal ligament of spinous process of C7 - T2 I: Costal angles of ribs 2-5 N: Ventral rami of spinal nerves (intercostal nerve) T1 - T4 F: Elevates ribs |
| Serratus Posterior Inferior Muscle | O: Spinous process of T11 - L2 I: Attaches last 3 or 4 ribs at costal angle N: Intercostal nerves: T8-T11 F: Depresses ribs |
Created by:
bmyneni
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