Superficial Muscles Of The Anterior And Posterior Thorax

Question 0

Insertion of pectoralis minor

Answer 0

Coracoid process of scapula

Question 1

Origin of pectoralis minor

Answer 1

Anterior surfaces of ribs 3-5

Question 2

Action of pectoralis minor

Answer 2

With ribs fixed, draws scapula forward and rotates scapula downward

Question 3

Innervation of pectoralis minor

Answer 3

Medial and lateral pectoral nerves

Question 4

Origin of serratus anterior

Answer 4

By a series of muscle slips from ribs 1-8

Question 5

Insertion of serratus anterior

Answer 5

Entire anterior surface of vertebral border of scapula

Question 6

action of serratus anterior

Answer 6

Rotates scapula upward so that its inferior angle moves laterally and upward; holds scapula

Question 7

Innervation of serratus anterior

Answer 7

Long thoracic nerve

Question 8

Origin of subclavius

Answer 8

Costal cartilage of rib 1

Question 9

Insertion of subclavius

Answer 9

Groove on inferior surface of clavicle

Question 10

Action of subclavius

Answer 10

Helps stabilize and depress pectoral girdle

Question 11

Innervation of subclavius

Answer 11

Nerve to subclavius

Question 12

Origin of trapezius

Answer 12

Occipital bone, ligamentum nuchae, and spines of c7 and all thoracic vertebrae

Question 13

Insertion of trapezius

Answer 13

A continuous insertion along acromion and spine of scapula and lateral third of clavicle

Question 14

Action of trapezius

Answer 14

Stabilizes, raises, retracts, and rotates scapula

Question 15

Innervation of trapezius

Answer 15

Accessory nerve

Question 16

Origin of Levator scapulae

Answer 16

Transverse processes of c1-c4

Question 17

Insertion of Levator scapulae

Answer 17

Medial border of the scapula, superior to the spine

Question 18

Action of Levator scapulae

Answer 18

Elevates and Adducts scapula

Question 19

Innervation of Levator scapulae

Answer 19

Cervical spinal nerves and dorsal scapular nerve

Question 20

Origin of rhomboids

Answer 20

Spinous processes of c7 and t1 (minor) and spinous processes of t2-t5 (major)

Question 21

Insertion of rhomboids

Answer 21

Medial border of scapula

Question 22

Action of rhomboids

Answer 22

Stabilize scapula

Question 23

Innervation of rhomboids

Answer 23

Dorsal scapular nerve