Chest & Scapula Flashcards
Trapezius
Origin: nuchal line, all cervical and thoracic vertebrae
Insertion: spine of scapula, acromion process and clavicle
Function: elevation and depression, adduction (retraction), upward rotation of scapula, extend/laterally flexes the neck
Rhomboids (Major & Minor)
Origin: C7 vertebrae to T5 vertebrae
Insertion: medial border of scapula
Function: adduction (retraction) of scapula, downward rotation of scapula
Levator Scapulae
Origin: four upper cervical vertebrae
Insertion: upper portion of medial border of scapula
Function: elevation and downward rotation of scapula
Serratus Anterior
Origin: 1st to 8th Ribs
Insertion: medial border of scapula
Function: upward rotation, abduction (protraction) of scapula
Pectoralis Major
Origin: clavicle, sternum, costal cartilage, 1st- 7th ribs and external oblique
Insertion: bicipital groove
Function: internal rotation, adduction and flexion of arm
Pectoralis Minor
Origin: 3rd, 4th and 5th Rib
Insertion: corocoid process of scapula
Function: protract scapula
Latissimus Dorsi
Origin: lower thoracic and lumbar vertebrae, iliac crest and sacrum
Insertion: bicipital groove
Function: adducts, extends and internally rotates arm
Elevation of Scapula (agonist & antagonistic pairs)
Agonist:
Trapezius
Levator Scapulae
Antagonist:
Trapezius
Depression of Scapula (agonist & antagonistic pairs)
Agonist:
Trapezius
Antagonist:
Trapezius
Levator Scapulae
Abduction/Protraction of Scapula (agonist & antagonistic pairs)
Agonist:
Serratus Anterior
Pectoralis Minor
Antagonist:
Rhomboids Maj&Min
Trapezius
Adduction/Retraction of Scapula (agonist & antagonistic pairs)
Agonist:
Rhomboids Maj&Min
Trapezius
Antagonist:
Serratus Anterior
Pectoralis Minor
Upward Rotation of Scapula (agonist & antagonistic pairs)
Agonist:
Trapezius
Serratus Anterior
Antagonist:
Rhomboids Maj&Min
Levator Scapulae
Downward Rotation of Scapula (agonist & antagonistic pairs)
Agonist:
Rhomboids Maj&Min
Levator Scapulae
Antagonist:
Trapezius
Serratus Anterior
Neck Extension
Agonist:
Trapezius
Antagonist:
Sternocleidomastoid
Neck Lateral Flexion
Agonist:
Trapezius
Antagonist:
Sternocleidomastoid
Scalenus Ant&Med