Shoulder girdle

Question 1

Levator scapulae

Answer 1

Actions - raises scapula
Origin- cervical vertebrae transverse process
Insertion- superior medial border of scapula

Question 2

Trapezius

Answer 2

Upper fibres
actions - elevate scapula
Origin - base of skull
Insertion - lateral 3rd of clavicle

Middle fibres
Actions - elevate, upwardly rotate, and adduct scapula
Origin- c7 vertebrae
Insertion- acromium and upper border of spine/scapula

Lower fibres
Action - depress, adduct upwardly rotate scapula
Origin - spinous process of T4 to T12 vertebrae

Question 3

Rhomboid

Answer 3

Actions - retracts scapula
Origin - C7 vertebrae to first 5 thoracic vertebrae
Insertion - medial border of scapula

Question 4

Pictoralis major

Answer 4

Actions -Protracts scapula
Origin- ribs 1-9
Insertion - coracoid process