Shoulder

Question 1

Trapezius

[Origin, Insertion, Action]

Answer 1

Origin: Occipital bone
Insertion: Acromion and spinous process of scapula
Action: Stabilize, raise, rotate, retract scapula

Question 2

Deltoid

[Origin, Insertion, Action]

Answer 2

Origin: Acromion and spine of scapula
Insertion: Deltoid tuberosity of humerus
Action: Abduct arm

Question 3

Levator scapulae ventralis

[Action]

Answer 3

Elevate & adduct scapula

Question 4

Latissimus dorsi

[Origin, Insertion, Action]

Answer 4

Origin: Lumbar vertebrae
Insertion: Floor of intertubercular sulcus of humerus
Action: Adduct & medially rotate arm

Question 5

Rhomboideus ((Rhomboids))

[Origin, Insertion, Action]

Answer 5

Origin: Spinous process of C7 & T1-T3
Insertion: Medial border of scapula
Action: Pull scapula medially

Question 6

Infraspinatus

[Origin, Insertion, Action]

Answer 6

Origin: Infraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Action: Lateral rotation of humerus

Question 7

Teres major

[Origin, Insertion, Action]

Answer 7

Origin: Posterior surface at inferior angle of scapula
Insertion: Intertubercular sulcus of humerus
Action: Adduct humerus

Question 8

Splenius

[Action]

Answer 8

Extend or hyperextend head

Question 9

Supraspinatus

[Origin, Insertion, Action]

Answer 9

Origin: Supraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Action: Abduction of humerus