Superficial Back Flashcards
Trapezius Origin
Superior Nuchal Line, External occipital protuberance, ligamentum nuchae, SP C7-T12
Trapezius Insertion (lateral attachment)
Lateral 1/3 of of the clavicle, acromion, spine of scapula
Trapezius actions
Rotates scapula to tilt Glenoid cavity superiorly
Superior part: Elevates
Middle part: Retracts
Inferior part: depresses scapula
Trapezius Innervation
Motor: Spinal accessory (XI)
Proprioception: C3, C4
Latissimus Dorsi Origin
SP (Spinous Process) T7-L5
Thoracolumbar Fascia
Sacrum
Illiac crest
Ribs 10-12
Latissimus Dorsi Insertion
Floor of intertubercular sulcus (Humerus)
Latissumus Dorsi Actions
Extends
Adducts
Medial Rotation of Humerus
Latissimus Dorsi Innervations
Thoracodorsal Nerve
Levator Scapulae Origin
Transverse Process T2-T5
Levator Scapulae Insertion
Superior angle of scapula
Levator Scapulae Actions
Elevates and rotates the scapula to tilt the Glenoid cavity inferiorly
Levator Scapulae Innervation
Dorsal Scapular Nerve
Rhomboid Major Origin
SP T2-T5
Rhomboid Major Insertion
Medial border of scapula below spine
Rhomboid Major Action
Retracts and rotates the scapula to tilt the glenoid cavity inferiorly
Rhomboid Major Innervation
Dorsal Scapular Nerve
Rhomboid Minor Origin
Ligamentum nuchae
SP C7-T1
Rhomboid Minor Insertion
Medial border of scapula at spine
Rhomboid Minor Action
Retracts and rotates the scapula to tilt the glenoid cavity inferiorly
Rhomboid Minor Innervation
Dorsal Scapular nerve
What makes up the triangle of auscultation
Trapezius, Latissimus Dorsi, Rhomboid Major
Serratus posterior superior origin
Nuchal Ligament
Spinous processes of C7-T3
Serratus posterior superior insertion
Superior borders of ribs 2-5
Serratus posterior superior Innervation
2-5th Intercostal nerves
Serratus posterior superior action
Elevates ribs
Serrtatus posterior inferior origin
Spinous processes of vertebrae T11-L2
Serratus posterior inferior insertion
Inferior borders of ribs 9-12
Serratus posterior inferior Innervation
Anterior Rami of spinal nerves (T9-T12)
Intercostal nerve and subcostal nerve
Serratus posterior inferior action
Depresses ribs, draws ribs inferoposteriorally