Muscles of the Scapula Flashcards Preview

Muscles - Origin, Insertion & Action > Muscles of the Scapula > Flashcards

Flashcards in Muscles of the Scapula Deck (10)
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1
Q
A

Levator Scapulae

Origin

  • Transverse processes of the vertebrae C1-C4

Insertion

  • Superior angle of the scapula

Action

  • Elevation of the scapula
  • Downward rotation of the scapula
  • Assists in lateral flexion and extension of the head and neck
2
Q
A

Rhomboids

Origin

  • Major Portion - Spinous Processes of Vertebrae T2-T5
  • Minor Portion - Spinous Processes of Vertebrae C7 and T1

Insertion

  • Major Portion - Vertebral Border from the Root of the Spine to the Inferior Angle
  • Minor Portion - Root of the Spine of the Scapula

Action

  • Retraction (adduction) of the scapula
  • Downward rotation of the scapula
  • Assists in elevation of the scapula
3
Q
A

Trapezius

Origin

  • Trapezius Upper Section - Base of the Occiput, Ligamentum Nuchae, and Spinous Processes of C1-C7
  • Trapezius Middle Section - Spinous Processes of C7-T3
  • Trapezius Lower Section - Spinous Processes of T4-T12

Insertion

  • Trapezius Upper Section - Lateral Clavicle and Acromion Process
  • Trapezius Middle Section - Spine of the Scapula
  • Trapezius Lower Section - Root of the Spine of the Scapula

Action

  • All Three Sections - Upper Rotation of the Scapula
  • Upper Portion - Elevation of the Scapula
  • Middle Portion - Retraction (Adduction) of the Scapula
  • Lower Portion - Depression of the Scapula
4
Q
A

Serratus Anterior

Origin

  • Surface of the Upper 8 or 9 Ribs

Insertion

  • Medial Border of the Scapula
  • All Fibers Converge at the Inferior Angle of the Scapula

Action

  • Protraction of the scapula
  • Stabilize the scapula to the ribs
  • Assists in upper rotation of the scapula
5
Q
A

Pectoralis Minor

Origin

  • Ribs 3, 4, and 5

Insertion

  • Coracoid Process of the Scapula

Action

  • Depression of the scapula
  • Downward rotation of the scapula
  • Protraction (abduction) of the scapula
6
Q
Reversed

Levator Scapulae

Origin

  • Transverse processes of the vertebrae C1-C4

Insertion

  • Superior angle of the scapula

Action

  • Elevation of the scapula
  • Downward rotation of the scapula
  • Assists in lateral flexion and extension of the head and neck
A
7
Q
Reversed

Rhomboids

Origin

  • Major Portion - Spinous Processes of Vertebrae T2-T5
  • Minor Portion - Spinous Processes of Vertebrae C7 and T1

Insertion

  • Major Portion - Vertebral Border from the Root of the Spine to the Inferior Angle
  • Minor Portion - Root of the Spine of the Scapula

Action

  • Retraction (adduction) of the scapula
  • Downward rotation of the scapula
  • Assists in elevation of the scapula
A
8
Q
Reversed

Trapezius

Origin

  • Trapezius Upper Section - Base of the Occiput, Ligamentum Nuchae, and Spinous Processes of C1-C7
  • Trapezius Middle Section - Spinous Processes of C7-T3
  • Trapezius Lower Section - Spinous Processes of T4-T12

Insertion

  • Trapezius Upper Section - Lateral Clavicle and Acromion Process
  • Trapezius Middle Section - Spine of the Scapula
  • Trapezius Lower Section - Root of the Spine of the Scapula

Action

  • All Three Sections - Upper Rotation of the Scapula
  • Upper Portion - Elevation of the Scapula
  • Middle Portion - Retraction (Adduction) of the Scapula
  • Lower Portion - Depression of the Scapula
A
9
Q
Reversed

Serratus Anterior

Origin

  • Surface of the Upper 8 or 9 Ribs

Insertion

  • Medial Border of the Scapula
  • All Fibers Converge at the Inferior Angle of the Scapula

Action

  • Protraction of the scapula
  • Stabilize the scapula to the ribs
  • Assists in upper rotation of the scapula
A
10
Q
Reversed

Pectoralis Minor

Origin

  • Ribs 3, 4, and 5

Insertion

  • Coracoid Process of the Scapula

Action

  • Depression of the scapula
  • Downward rotation of the scapula
  • Protraction (abduction) of the scapula
A