Pectorals

Question 1

Pectoralis Major Clavicular Head
(Origin)

Answer 1

Origin: Medial Two Thirds of Clavicle

Question 2

Pectoralis Major Clavicular Head
(Insertion)

Answer 2

Insertion: Lateral Lip of Intertubercular Groove of Humerus

Question 3

Pectoralis Major Clavicular Head
(Action)

Answer 3

Action: Adduction and Medial Rotation and Flexion of Arm

Question 4

Pectoralis Major Clavicular Head
(Innervation)

Answer 4

Innervation: Medial and Lateral Pectoral Nerves

Question 5

Pectoralis Major Clavicular Head
(Blood Supply)

Answer 5

Blood Supply: Pectoral Branch of Thoracoacromial Artery

Question 6

Pectoralis Major Sternal Head
(Origin)

Answer 6

Origin: Sternum and Costal Cartilages 2-4

Question 7

Pectoralis Major Sternal Head
(Insertion)

Answer 7

Insertion: Lateral Lip of the Intertubercular groove of the humerus

Question 8

Pectoralis Major Sternal Head
(Action)

Answer 8

Action: Adduction and Medial Rotation of Arm

Question 9

Pectoralis Major Sternal Head
(Innervation)

Answer 9

Innervation: Medial and Lateral Pectoral Nerves

Question 10

Pectoralis Major Sternal Head
(Blood Supply)

Answer 10

Blood Supply: Pectoral Branch of Thoracoacromial Artery

Question 11

Pectoralis Minor
(Origin)

Answer 11

Origin: Ribs 3-5

Question 12

Pectoralis Minor
(Insertion)

Answer 12

Insertion: Coracoid Process of the Scapula

Question 13

Pectoralis Minor
(Action)

Answer 13

Action: Depression of Shoulder; Downward Rotation of Scapula

Question 14

Pectoralis Minor
(Innervation)

Answer 14

Innervation: Medial Pectoral Nerve

Question 15

Pectoralis Minor
(Blood Supply)

Answer 15

Blood Supply; Pectoral Branch of the Thoraco-acromial and intercostal Lateral Thoracic Arteries

Question 16

Serratus Anterior
(Origin)

Answer 16

Origin: Ribs 1-8 on Anterolateral Thoracic Wall

Question 17

Serratus Anterior
(Insertion)

Answer 17

Insertion: Medial Border of Scapula; Inferior Angle

Question 18

Serratus Anterior
(Action)

Answer 18

Action: Protraction of the scapula; holds medial border against thoracic wall

Question 19

Serratus Anterior
(Innervation)

Answer 19

Innervation: Long Thoracic Nerve

Question 20

Serratus Anterior
(Blood Supply)

Answer 20

Blood Supply: Lateral Thoracic Artery

Question 21

Subclavius
(Origin)

Answer 21

Origin: 1st Rib

Question 22

Subclavius
(Insertion)

Answer 22

Insertion: Inferior Surface of Clavicle

Question 23

Subclavius
(Action)

Answer 23

Action: Stabilizes Sternoclavicular Joint

Question 24

Subclavius
(Innervation)

Answer 24

Innervation: Nerve to Subclavius

Question 25

Subclavius
(Blood Supply)

Answer 25

Blood Supply: Thoracoacromial and Suprascapular Arteries