Shoulder Girdle & Joint

Question 1

Pectoralis Minor

Answer 1

O - Anterior surfaces of ribs 3-5, near their costal cartilages
I - Mediosuperior surface of coracoid process of scapula

Question 2

Serratus Anterior

Answer 2

O - Exterolateral surfaces of ribs 1-8

I - Entire anterior surface of medial border of scapula

Question 3

Subclavius

Answer 3

O - Costal cartilage of rib 1

I - Groove on inferior middle-third clavicular surface (subclavian groove - more posterior than anterior)

Question 4

Trapezius

Answer 4

O - Medial-third of superior nuchal line of occipital bone, external occipital protruberance, nuchal ligament, and spinous processes of C7-T12
I - Continuous insertion along lateral third of clavicle, spine of scapula, and acromion

Question 5

Levator Scapulae

Answer 5

O - Posterior tubercles of tranverse processes of C1-C4

I - Medial border of scapula, above the spine of scapula (superior angle region)

Question 6

Rhomboid Minor

Answer 6

O - Spinous processes of C7 and T1, and nuchal ligament

I - Medial border of scapula, at the smooth triangular area at the root of its spine

Question 7

Rhomboid Major

Answer 7

O - Spinous processes of T2-T5

I - Medial border of scapula, from inferior of its spine to the inferior angle

Question 8

Pectoralis Major

Answer 8

O - Anterior surface of medial-half of clavicle, anterior surface of sternum, cartilage of ribs 1-6, and aponeurosis of external oblique
I - Crest of greater tubercle (lateral lip of intertubercular groove)

Question 9

Deltoid (Anterior)

Answer 9

O - lateral-third of clavicle

I - Deltoid tuberosity of humerus

Question 10

Deltoid (Middle)

Answer 10

O - Acromion

I - Deltoid tuberosity of humerus

Question 11

Deltoid (Posterior)

Answer 11

O - Spine of scapula

I - Deltoid tuberosity of humerus

Question 12

Latissimus Dorsi

Answer 12

O - Spinous processes of T7-T12, thoracolumbar fascia, medial-third of posterior iliac crest, lower 3-4 ribs, and sometimes the inferior angle of scapulae
I - Floor of intertubercular groove

Question 13

Subscapularis

Answer 13

O - Subscapular fossa of scapula

I - Lesser tubercle of humerus

Question 14

Supraspinatus

Answer 14

O - Supraspinous fossa of scapula

I - Superior facet of greater tubercle of humerus

Question 15

Infraspinatus

Answer 15

O - Infraspinous fossa of scapula

I - Middle facet of greater tubercle of humerus

Question 16

Teres Minor

Answer 16

O - Middle part of lateral border of scapula

I - Inferior facet of greater tubercle of humerus

Question 17

Teres Major

Answer 17

O - Posterior surface of scapula at inferior angle

I - Crest of lesser tubercle (medial lip of intertubercular groove)