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The latissimus dorsi muscle taking origin from spinous processes T7-T12 vertebrae and spinous processes of the lumber vertebrae and iliac crest , this muscle insertion into intertubercular sulcus and inervation by thoracodorsal nerve * T/F

The latissimus dorsi muscle taking origin from spinous processes T7-T12 vertebrae and spinous processes of the lumber vertebrae and iliac crest , this muscle insertion into intertubercular sulcus and inervation by thoracodorsal nerve * T/F

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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The latissimus dorsi muscle taking origin from spinous processes T7-T12 vertebrae and spinous processes of the lumber vertebrae and iliac crest , this muscle insertion into intertubercular sulcus and inervation by thoracodorsal nerve * T/F
Find TABLE 6.7 SUPERFICIAL BACK (POSTERIOR AXIO-APPENDICULAR) AND DELTOID MUSCLES Muscle Proximal Attachment Distal Attachment Innervation Main Actions Trapezius Medial third of superior nuchal line; external occipital protuberance, nuchal ligament, and spinous processes of C7-T12 vertebrae Lateral third of clavicle, acromion, and spine of scapula Spinal accessory nerve (CN X-motor) and cervical nerves (C3-C4-sensory) Elevates, retracts, and rotates scapula; descending part elevates, transverse part retracts, and ascending part depresses scapula; descending and ascending part act together In superior rotation of scapula Latissimus dorsi Spinous processes of inferior six Intertubercular sulcus thoracic vertebrae, thoracolumbar (bicipital groove) of humerus fascia, iliac crest, and inferior three or four ribs Thoracodorsal nerve (C6, C7, C8) Extends, adducts, and medially rotates shoulder joint; elevates body toward arms during climbing Levator Posterior tubercles of transverse processes of C1-C4 vertebrae Superior part of medial border Dorsal scapular (C5) and cervical Elevates scapula and tilts its glenoid cavity inferiorly by rotating of scapula scapulae (C3-C4) nerves scapula Rhomboid minor Minor: Inferior part of nuchal and major Medial border of scapula from Dorsal scapular nerve (C4-C5) level of spine to inferior angle Retract scapula and rotate it to depress glenoid cavity; fix scapula to thoracic wall ligament and spinous processes of C7 and T1 vertebrae Major: spinous processes of T2- T5 vertebrae Lateral third of clavicle (clavicular part), acromion (acromial part), and spine (spinal part of scapula Clavicular (anterior) part. flexes and medially rotates shoulder joint; acromial (middle) part: abducts shoulder joint; spinal posterior) part extends and laterally rotates shoulder joint Deltoid Deltoid tuberosity of humerus Axillary nerve (C5-C6) 11:50 AR A * * 2021/C DELL EMIUM SOUND
Transcribed Image Text:Find TABLE 6.7 SUPERFICIAL BACK (POSTERIOR AXIO-APPENDICULAR) AND DELTOID MUSCLES Muscle Proximal Attachment Distal Attachment Innervation Main Actions Trapezius Medial third of superior nuchal line; external occipital protuberance, nuchal ligament, and spinous processes of C7-T12 vertebrae Lateral third of clavicle, acromion, and spine of scapula Spinal accessory nerve (CN X-motor) and cervical nerves (C3-C4-sensory) Elevates, retracts, and rotates scapula; descending part elevates, transverse part retracts, and ascending part depresses scapula; descending and ascending part act together In superior rotation of scapula Latissimus dorsi Spinous processes of inferior six Intertubercular sulcus thoracic vertebrae, thoracolumbar (bicipital groove) of humerus fascia, iliac crest, and inferior three or four ribs Thoracodorsal nerve (C6, C7, C8) Extends, adducts, and medially rotates shoulder joint; elevates body toward arms during climbing Levator Posterior tubercles of transverse processes of C1-C4 vertebrae Superior part of medial border Dorsal scapular (C5) and cervical Elevates scapula and tilts its glenoid cavity inferiorly by rotating of scapula scapulae (C3-C4) nerves scapula Rhomboid minor Minor: Inferior part of nuchal and major Medial border of scapula from Dorsal scapular nerve (C4-C5) level of spine to inferior angle Retract scapula and rotate it to depress glenoid cavity; fix scapula to thoracic wall ligament and spinous processes of C7 and T1 vertebrae Major: spinous processes of T2- T5 vertebrae Lateral third of clavicle (clavicular part), acromion (acromial part), and spine (spinal part of scapula Clavicular (anterior) part. flexes and medially rotates shoulder joint; acromial (middle) part: abducts shoulder joint; spinal posterior) part extends and laterally rotates shoulder joint Deltoid Deltoid tuberosity of humerus Axillary nerve (C5-C6) 11:50 AR A * * 2021/C DELL EMIUM SOUND
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