ANAT 1615 Muscles of the Arm and Shoulder, Forearm

ANAT 1615 Muscles of the Arm and Shoulder, Forearm - Muscle...

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Muscles of the Back - Extrinsic - Superficial Muscle Origin Insertion Action Innervation Artery Notes Trapezius Latissimus Dorsi Rhomboid Minor Hypomere. VPR Rhomboid Major T2-5 Levator Scapulae TP's of C1-4 Sup. angle of Scapula Elevation of scapula Ribs 2-5 Rib Elevation Accessory respiratory muscles Ribs 9-12 Rib Depression Muscles of the Intermediate back - intrinsic Muscle Origin Insertion Action Innervation Artery Notes DPR Splenius Cervicis SP of T3-T6 DPR deep to the splenius capitis Intercostal arteries Angles of ribs 7-12 angles of ribs Angles of ribs 3-6 TP of T1-T5 SP of T11-L2 SP of T1-T8 SP of C2 Mastod Process Muscle Origin Insertion Action Innervation Artery Notes TPs: T6-T10 SPs: C6-T4 Intercostal arteries TPs: T1-6 Sps: C2-C5 TPs: C7-T6 Multifidus Rotatores TP of C2 to sacrum Interspinalis DPR TP to TP Levatores costarum Tips of TP of C7-T11 Elevate the ribs DPR C8-T11 EOP & Sup. Nuchal line --> T12 lateral third of the clavicle; acromion and spine of the scapula elevates, depresses, rotates, protracts scapula CN XI Spinal Accesory Only Motor! Transverse Cervical Artery named for its shape; trapezius is an example of a muscle that migrates during development from its level of origin (cervical) to its final position, pulling its nerve and artery along behind *hypomere* ventral rami T7 --> Sacrum Iliac crest via Thoracolumbar fascia Lateral Intertubercular groove extends, adducts, medially rotates humerus. thoracodorsal nerve (C6,7,8) from the posterior ramus of the brachial plexus Thoracodorsal Artery latissimus dorsi tendon passes in close relationship to the teres major tendon at their insertions *2-3 segments *hypomere* ventral rami Ligamentum Nuchae C7- T1 Medial border of scapula Retract/elevate scapula Dorsal Scapular Nerve C5 Dorsal Scapular artery (deep to transverse cervical art. Serratus Posterior Superior Ligamentum Nuchae & C7-T3 Intercostal nerve T1-4 Serratus Posterior Inferior Ligamentum Nuchae T11-L2 Intercostal nerve T9-12 VPR Triangle of auscultation : bounded by medial margin of scapula + Trapezius + Latissimus dorsi Lumbar Triangle : bounded by ext. oblique + Lats + iliac crest Splenius Capitis Ligamentum Nuchae & C7-T4 Mastoid Process & Occipital Bone Unilat - rotate head/neck to 1 side Bilat - extend head/neck segmentally by: deep cervical artery & posterior intercostal artery.
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ANAT 1615 Muscles of the Arm and Shoulder, Forearm - Muscle...

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