Anatomy Exam- Upper Extremity

Question 1

Trapezius muscle

Answer 1

Positioned posterior (superficial to rhomboid muscles

Question 2

Accessory nerve (CN XI)

Answer 2

Runs parallel to the transverse cervical artery on the deep aspect of trapezius muscle

Question 3

Transverse cervical artery

Answer 3

Runs parallels to the accessory nerve (CN XI) on the deep aspect of the trapezius muscle

Question 4

Thoracodorsal artery

Answer 4

Runs parallel to thoracodorsal nerve on the deep aspect of the latissimus dorsi muscle

Question 5

Thoracodorsal nerve

Answer 5

Runs parallel to the Thoracodorsal artery on the deep aspect of the latissimus dorsi muscle

Question 6

Rhomboid muscle

Answer 6

Positioned deep/more anterior to the Trapezius muscle

Question 7

Dorsal scapular nerve

Answer 7

Runs parallel to dorsal scapular artery on the deep aspect of rhomboid muscles at medial border of scapula

Question 8

Deltoid muscle (posterior)

Answer 8

Posterior deltoid muscle is superficial to Infraspinatous muscle

Question 9

Axillary nerve

Answer 9

The axillary nerve runs parallel to the posterior circumflex humeral artery on the deep aspect of the deltoid muscle

Question 10

Posterior circumflex humeral artery

Answer 10

Posterior circumflex humeral artery runs parallel to the axillary nerve on the deep aspect of the deltoid muscle

Question 11

Teres minor muscle

Answer 11

Positioned laterally to the infraspinatus muscle

Question 12

Teres major muscle

Answer 12

Is inferior to Teres minor muscle (typically easy to ID on cadavers- large borders)

Question 13

Long head of triceps brachii muscle

Answer 13

Long head of the triceps brachii passes in between the Teres minor and Teres major muscles

Question 14

Infraspinatus muscle

Answer 14

Medial to the Teres major, inferior to scapular spine

Question 15

Supraspinatus muscle

Answer 15

Superior to scapular spine

Question 16

Suprascapular artery

Answer 16

The suprascapular artery passes ABOVE (superior to) the superior transverse scapular ligament

Question 17

Suprascapular nerve

Answer 17

The suprascapular nerve passes BELOW (inferior to) the superior transverse scapular ligament

Question 18

Circumflex scapular artery*

Answer 18

• not on Donor ID list

Circumflex scapular artery passes inferior and lateral to the Teres minor muscle (transverse the triangular space)

Question 19

Pectoralis major muscle- clavicular head

Answer 19

attaches to clavicle; once located can find the cephalic vein between here & deltoid [in the deltoid-pectoral groove]

Question 20

Pectoralis major- Sternocostal head

Answer 20

Connects Pectoralis major to sternum & costal cartilages 1-7; near where the medial pectoral nerve comes out of the Pectoralis minor (underneath) to deep aspect of Pectoralis major

Question 21

Cephalic vein

Answer 21

Found in between the deltoid and clavicular head of the Pectoralis major muscle (in the delto-pectoral groove)

Question 22

Medial pectoral nerve

Answer 22

Pierces the Pectoralis minor (to come anteriorly) to the deep aspect of the sternocostal head of the Pectoralis major muscle. Actually located on lateral side (despite name!)

Question 23

Lateral pectoral nerve

Answer 23

Innervates the deep aspect of the clavicular head of Pectoralis major muscle; actually medially located (despite the name!)

Question 24

Thoracoacromial trunk

Answer 24

Thoracoacromial trunk passes medial to the Pectoralis major muscle

Question 25

Thoracoacromial artery - pectoral branch

Answer 25

Pectoral branch of Thoracoacromial artery is deep to the Pectoralis major muscle

Question 26

Pectoralis minor

Answer 26

Pectoralis minor muscle is deep to the Pectoralis major muscle