Muscles-Pectoral Girdle

Question 0

Pectoralis Minor

Answer 0

Origin: Ribs 3-5 near costal cartilage
Insertion: Corocoid process
Nerve: Medial pectoral nerve

Question 1

Pectoralis Major

Answer 1

Origin: Anterior surface of medial 1/2 of clavicle, Anterior surface of sternum, Superior 6 ribs
Insertion: Lateral lip of intertubercular groove
Nerve: Lateral/medial pectoral nerves

Question 2

Subclavius

Answer 2

Origin: Junction of rib 1
Insertion: Inferior surface of middle 1/3 of clavicle
Nerve: Nerve to subclavius

Question 3

Serratus Anterior

Answer 3

Origin: External surfaces of lateral parts of ribs 1-9
Insertion: Anterior surface of medial border of scapula
Nerve: Long thoracic

Question 4

Deltoid

Answer 4

Origin: Lateral 1/3 of clavicle, Acromion, Inferior spine of scapula
Insertion: Deltoid tuberosity of humerus
Nerve: Axillary

Question 5

Teres Major

Answer 5

Origin: Posterior surface of inferior angle of scapula
Insertion: Medial lip of intertubercular groove of humerus
Nerve: Lower subscapular

Question 6

Supraspinatus

Answer 6

Origin: Supraspinous fossa of scapula
Insertion: Superior face of greater tubercle of humerus
Nerve: Suprascapular

Question 7

Subscapularis

Answer 7

Origin: Subscapular fossa
Insertion: Lesser tubercle of humerus
Nerve: Upper/lower subscapular nerves

Question 8

Infraspinatus

Answer 8

Origin: Infraspinous fossa of scapula
Insertion: Middle facet of greater tubercle of humerus
Nerve: Suprascapular

Question 9

Teres Minor

Answer 9

Origin: Middle part of lateral border of scapula
Insertion: Inferior facet of greater tubercle of humerus
Nerve: Axillary