Superficial Back POINA Flashcards
Latissimus Dorsi Purposeful Action
Propelling WC forward, pushing arms of chair to stand
Latissimus Dorsi Actions
Extension, adduction, IR, raise body towards arm when climbing
Head/neck: extend, ipsilateral flexion, contralateral rotation
Latissimus Dorsi Distal Attachment
Interbecular sulcus of humerus
Latissimus Dorsi Proximal Attachment
-Inferior angle of scapula (7% of people)
-Spinous process of T6-T12
-Thoracolumbar fascia
-Iliac crest
-Inferior 3/4 ribs
Latissimus Dorsi Innervation
Thoracodorsal 6-8 (TD 6-8)
Trapezius Purposeful Action
Reaching for object overhead (upper and lower), rowing kayak (middle)
Trapezius Actions (Scapula)
-Upper: Elevation, upward rotation
-Middle: Adduction, stabilize scapula
-Lower: Depression, upward rotation
Trapezius Proximal Attachment
-External occipital protuberance
-Medial 1/3rd of superior nuchal line
-Nuchal ligament
-Spinous process of C7-T12
Trapezius Distal Attachment
-Acromion (middle)
-Lateral 1/3rd of clavicle (upper)
-Spine of scap (lower)
Trapezius Innervation
-Cranial nerve 11 (spinal accessory)
-Ventral ramus of C3-4
Levator Scapulae Purposeful Action
Shrugging, carry briefcase, carry backpack on one shoulder
Levator Scapulae Action
Elevation, downward rotation (LED)
Levator Scapulae Proximal Attachment
Spinous process of C1-C4
Levator Scapulae Distal Attachment
Medial border of scapula (between superior angle and root of spine)
Levator Scapulae Innervation
Cervical 3/4 and dorsal scapular nerve (DSN, C4/5, shared with rhomboid)