Anatomy: Pectoral Girdle Flashcards
Trapezius Origin
- Occipital Protuberance
- Medial Portion of the Superior Nuchal Line of Occiput
- Ligamentum Nuchae
- SP’s of C7 through T12
Trapezius Insertion
- Lateral Portion of Clavicle
- Acromion Process
- Spine of Scapula
Upper Trapezius Bilateral Action
- Extends Head and Neck
Upper Trapezius Unilateral Actions
- Laterally Flexes Head and Neck
- Rotates Head and Neck to Contralateral Side
- Upwardly Rotates Scapuls
Middle Trapezius Actions
- Adducts (Retracts) Scapula
- Stabilizes Scapula
Lower Trapezius Actions
- Depresses Scapula
- Upwardly Rotates Scapula
Rhomboids Major Origin
SPs T2 to T5
Rhomboids Minor Origin
SPs C7 to T1
Rhomboids Insertion
Medial Border of the Scapula Between Spine and Inferior Angle
Trapezius Characteristics
- Non Ropy
- Superficial
Rhomboids Actions
- Adducts Scapula
- Elevates Scapula
- Downwardly Rotates Scapula
Rhomboids Characteristics
- Non Ropy
- Deep
Levator Scapula Origin
Traverse Processes of C1 to C4
Levator Scapula Origin
Medial Border of Scapula Between Superior Angle and Superior Portion of Spine of Scapula
Levator Scapula Unilateral Actions
- Elevates Scapula
- Downwardly Rotates
- Lateral Flexes Hand Necks
- Ipsilaterally Rotates Head and Neck
Levator Scapula Bilateral Actions
- Extends Head and Neck
Levator Scapula Characteristics
- Non Ropy
- Superficial and Deep
Serratus Anterior Origin
External Surfaces of Upper 8 or 9 Ribs
Serratus Anterior Insertion
Anterior (Costal) Surface of Medial Barber of Scapula
Serratus Anterior Actions
- Abducts Scapula
- Depresses Scapula
- Upwardly Rotates Scapula
- Holds Medial Border of Scapula Against Ribcage
- May Act in Forced Inspiration
Serratus Anterior Characteristics
- Non Ropy
- Superficial and Deep
Pectoralis Minor Origin
Ribs 3, 4, 5
Pectoralis Minor Insertion
Coracoid Process of Scapula
Pectoralis Minor Actions
- Depresses Scapula
- Abducts Scapula
- Downwardly Rotates Scapula
- Assists in Forced Inspiration
Pectoralis Minor Characteristics
- Non Ropy
- Deep
Trapezius Upper Fibers Palpation
- Prone
- Grasp the superficial tissue on the top the shoulder and follow the fibers superiorly toward the occiput
Trapezius Middle Fibers Palpation
- Prone
- Slide medially from the spine of the scapula onto the trapezius
Trapezius Lower Fibers Palpation
- Prone
- Push fingers along the line from the spine of the scapula to T12
Rhomboids Palpation
- Prone
- Strum vertically across medial border of scapula to spinous processes C7 to T5
Levator Scapula Palpation
- Prone
- Strum across superior angle and upper region of medial border of the scapula to transverse processes of the C1 to C4
Serratus Anterior Palpation
- Supine; Arm Abducted
- Place finger pads along the side of ribs 1 to 8/9 and strum across
Pectoralis Minor Palpation
- Supine; Arm Abducted
- Slide under pectoralis major and follow from the coracoid process to ribs 3, 4, 5
