UL: Axilla

Question 1

Branches of axillary artery

Answer 1

1st part: Superior thoracic artery

2nd part: Thoraco-acromial artery, lateral thoracic artery

3rd part: subscapular artery, anterior and posterior circumflex humeral artery

Question 2

Which muscles splits axillary artery in 3 parts

Answer 2

pec minor

Question 3

Branches of axillary artery

Answer 3

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Superior thoracic artery
Thoracoacromial artery
Lateral thoracic artery
Subscapular artery
Anterior humeral circumflex artery
Posterior humeral circumflex artery

Question 4

Anterior wall of axilla made off

Answer 4

Pec major

Pec minor

Subclavius

Clavicopectoral fascia

Question 5

Origin and insertion of pec major

Answer 5

Origin: Clavicle, Sternocostal, Aponeurosis of external oblique

To: Intertubercular sulcus of humerus

Question 6

Origin and insertion of subclavius

Answer 6

Origin: 1st rib

To: middle 3rd of clavicle

Question 7

Origin and insertion of Pec minor

Answer 7

Costal cartilage 3-5 to coracoid process

Question 8

Innervation of pec major

Answer 8

Medial and lateral pectoral nerves

Question 9

Innervation of subclavius

Answer 9

Nerve to subclavius

Question 10

Innervation of pectoralis minor

Answer 10

Medial pectoral nerve

Question 11

Actions of pec major

Answer 11

Adduction of shoulder

Question 12

Actions of subclavius/pec minor

Answer 12

Pulls shoulder down

Question 13

Clavicopectoral fascia covers which structures

Answer 13

Pec minor and subclavius

Question 14

Structures through clavicopectoral fascia

Answer 14

Cephalic vein, lateral and medial pectoral nerves, pectoral branch of thoraco-acromial artery

Question 15

Medial wall of axilla made off

Answer 15

Seratus anterior

Question 16

Origin and insertion of Seratus anterior

Answer 16

8-9 rib to medial scapula

Question 17

Innervation of seratus anterior

Answer 17

Long thoracic nerve C5

Question 18

Action of seratus anterior

Answer 18

Protraction and rotation of the scapula

Question 19

Posteriro wall of axilla made off

Answer 19

Subscapularis

Teres major

Latissimus dorsi

Long head of triceps

Question 20

Origin and insertion of subscapularis

Answer 20

subscapular fossa to lesser tubercle of humerus

Question 21

Innervation of subscapularis

Answer 21

Upper and lower subscapular nerves

Question 22

Action of subscapular muscle

Answer 22

medial rotation of arm at shoulder

Question 23

Origin and insertion of latissimus dorsi

Answer 23

Spinous process of thoracic and lumbar vertebra, ilial crest and lower 3-4 ribs

To Intertubercular sulcus of humerus

Question 24

Innervation of latissimus dorsi

Answer 24

Thoracodorsal nerve

Question 25

Action of latissimus dorsi

Answer 25

Adduction and medial rotation

Question 26

Veins of axilla

Answer 26

Question 27

Routes of brachial plexus

Answer 27

C5 to T1

Question 28

Trunks of brachial plexus

Answer 28

Superior Middle Inferior

Question 29

Nerves of the route of brachial plexus

Answer 29

Long thoracic nerve Dorsal scapular Subclavius nerve

Question 30

Nerves of the trunks of brachial plexus

Answer 30

Suprascapular nerve

Question 31

Divisions of brachial plexus

Answer 31

Anterior and posterior

Question 32

Cords of brachial plexus

Answer 32

Lateral Posterior Medial (in relation to axillary artery)

Question 33

Branches of posterior cord of brachial plexus

Answer 33

Upper subscapular Thoracodorsal Lower subscapular Radial Axillary

Question 34

Branches of medial cord of brachial plexus

Answer 34

Medial pectoral nerve Medial cutaneous nerve of arm Medial cutaneous nerve of forearm Ulnar Median

Question 35

Branches of lateral cord of brachial plexus

Answer 35

Lateral pectoral nerve Musculocutaneous Median

Question 36

When does subclavian artery become axillary artery

Answer 36

Lateral border of 1st rib

Question 37

When does axillary artery become brachial artery

Answer 37

inferior border of teres major

Question 38

Terminal branch of musculocutanous

Answer 38

Lateral cutenous nerve of forearm (anterolateral forearm sensation)