Exam #6_Lab: Scapular Region

Question 1

What is the origin of the deltoid?

Answer 1

1) Scapular spine
2) Acromion
3) Clavicle

Question 2

What nerve supplies the deltoid?

Answer 2

Axillary n.

Question 3

What arteries supplies the deltoid?

Answer 3

Posterior circumflex humoral a.

Question 4

What are the borders of the quadrangular space?

Answer 4

Superior= teres minor
Inferior= teres major 
Medial= long head of triceps brachii
Lateral= surgical neck of humerus

Question 5

What structures pass through the quadrangular space? Where are they going?

Answer 5

1) Axillary n.
2) Posterior circumflex humoral a.

BOTH going to deltoid m.

Question 6

Where is the supraspinatus?

Answer 6

Superior to the spine of the scapula

Question 7

Where is the infraspinatus?

Answer 7

Inferior to the scapular spine

Question 8

Where is the teres minor?

Answer 8

Blends with infraspinatous, inferior to the scapular spine

Question 9

Where is the teres major?

Answer 9

Inferior to the teres minor

• Origin is the angle of the scapula
• Inserts on the bicepital groove

Question 10

What is the coracoacromial ligament?

Answer 10

Ligament from the coracoid process of the scapula to the acromion

Question 11

What is the insertion of the supraspinatous muscle?

Answer 11

Greater tubercle of the humerus

Question 12

Describe the path of the tendon of the supraspinatous m.

Answer 12

Passes deep to the acromion & coracoacromial ligament to insert on the greater tubercle of the humerus

Question 13

What nerve supplies the supraspinatous muscle?

Answer 13

Suprascapular n.

Question 14

What artery supplies the supraspinatous m?

Answer 14

Suprascapular a.

Question 15

What ligament bridges the suprascapular notch?

Answer 15

Suprascapular ligament

Question 16

What is the landmark for finding the suprascapular n. & a.? What is the orientation about this landmark? Mnemonic?

Answer 16

• Suprascapular ligament

- Remember “Army over Navy” i.e. artery above ligament & nerve below

Question 17

What muscles do the suprscapular n. & a. supply?

Answer 17

Spraspinatous m.

Infraspinatous m.

Question 18

Where is the infraspinatous m.?

Answer 18

Below the spine of the scapula

Question 19

What muscle passes between the teres minor & major?

Answer 19

Long head of the triceps brachii

Question 20

What are the boundaries of the triangular space?

Answer 20

inferior: teres major
lateral: long head of triceps
superior: lower border of teres minor

Question 21

What structures pass through the triangular space?

Answer 21

1) Circumflex scapular a.

2) Lower subscapular n.

Question 22

What muscle does the lower subscapular n. innervate?

Answer 22

Teres major

Question 23

Review the osteology of the scapula.

Answer 23

N/A