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South College Anatomy
Muscles of Back Innervation, Insertion, Origin
31
Anatomy
Graduate
10/06/2008

Additional Anatomy Flashcards

 


 

Cards

Term

Trapezius Origin

 

Definition
Superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous processes of CVII to TXII
Term

Trapezius Origin

 

Definition
Superior nuchal line, external occipital protrudence, ligamentum nuchae, spinous processes from C7 T12
Term
Trapezius Insertion
Definition
Lateral 1/3 clavical, Acromion, Spine of Scapula
Term

Trapezius Innervation

 

Motor

Proprioception

Definition
Motor: Cranial Nerve XI (Accessory Nerve)
Prioprioception: C3-C4
Term
Trapezius Function
Definition
Assists in rotating scapula during abduction of humerus.

Upper fibers elevate, middle fibers abduct, and lower fibers depress scapula
Term
Lattisimus Dorsi Origin
Definition
Spinous processesof TVI to LV and sacrum, illiac crest, ibs X and XII
Term
Lattisimus Dorsi Insertion
Definition
Floor of intertuberular sulcus
Term
Lattisimus Dorsi Innervation
Definition
Thoracodorsal nerve C6-C8
Term
Lattisimus Dorsi Function
Definition
Extends, adducts, and medially rotates humerus
Term
Levatator Scapulae Origin
Definition
Transverse process of C1-C4
Term
Levatator Scapulae Insertion
Definition
Upper portion medial border of scapula
Term
Levatator Scapulae Innervation
Definition
C3 to C4 and Dorsal Scapular Nerve (C4 and C5)
Term
Levatator Scapulae Function
Definition
Elevate Scapula
Term
Rhomboid Major Origin
Definition
Spinous process of T2-T5
Term
Rhomboid Major Insertion
Definition
Medial Border of Scapula (between spine and inferior angle)
Term
Rhomboid Major Innervation
Definition
Dorsal Scapular Nerve C4-C5
Term
Rhomboid Major Function
Definition
Retracts/Adducts Scapula, Elevates Scapula
Term
Rhomboid Minor Origin
Definition
Lower portion of Ligamentum Nuchae, spinous process of C7 and T1
Term
Rhomboid Minor Insertion
Definition
Medial Border of Scapula at spine of scapula
Term
Rhomboid Minor Innervation
Definition
Dorsal Scapular Nerve C4-C5
Term
Rhomboid Minor Function
Definition
Retracts, adducts, and elevates scapula.
Term
Serratus Posterior Superior Origin
Definition
Lower portion of Ligamentum Nuchae, spinous processes of C7-T3, and supraspinous ligaments.
Term
Serratus Posterior Superior Insertion
Definition
Upper body of ribs 2-5 just lateral to their angles.
Term
Serratus Posterior Superior Innervation
Definition
Anterior rami of upper thoracic nerves T2-T5
Term
Serratus Posterior Superior Function
Definition
Elevates Ribs 2-5
Term
Serratus Posterior Inferior Origin
Definition
Spinous processes of T11-L3 and supraspinous ligaments
Term
Serratus Posterior Inferior Insertion
Definition
Lower border of Ribs 9-12 just lateral to their angles.
Term
Serratus Posterior Inferior Innervation
Definition
Anterior rami of lower thoracic nerves T9 to T12
Term
Serratus Posterior Inferior Function
Definition
Depresses Ribs 9-12 and MAY prevent lower ribs from being elevated when diaphram contracts.
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