Exam 2 - Lecture 8 - Shoulder Complex and Joint Flashcards Preview

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Flashcards in Exam 2 - Lecture 8 - Shoulder Complex and Joint Deck (63)
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1

What muscle flexes, medially rotates, abducts, extends, and laterally rotates the humerus?

Deltoid

2

What muscle laterally rotates the huermus as well as holds it in place?

Infraspinatus

3

What muscle extends, adducts, and internally rotates the humerus?

Latissiumus dorsi

4

What muscle elevates the scapula as well as assists in the downward rotation of the scapula?

Levator scapulae

5

What muscle depresses the scapula?

The lower trapezius

6

What muscle abducts the shoulder?

Middle deltoid

7

What muscle adducts (i.e. retracts) the scapula?

The middle trapezius

8

What muscle adducts and medially rotates the arm, flexes the arm, extends the arm, and draws the scapula anteriorly and inferiorly?

Pectoralis major

9

What muscle draws the scapula inferior and anteriorly against the thoracic wall (i.e. stabilizes the scapula)?

Pectoralis minor (C)

10

What muscles adduct the scapula, rotate the glenoid fossa downward, and fixes the scapula to the thoracic wall?

Rhomboids

11

What muscle protacts the scapula, fixes the scapula to the thoracic wall, and rotates the scapula?

Serratus anterior

12

What muscle achors and depresses the clavicle?

Subclavius

13

What muscles works with the deltoid in abduction of the humerus as well as stabilizes the shoulder joint with the other rotator cuff muscles?

Supraspinatus

14

What muscle adducts and medially rotates the humerus?

Teres major

15

What muscles function together to upwardly rotate the scapula?

Upper and lower trapezius

16

What muscle elevates the scapula (i.e. shrugs the shoulder) that is NOT the levator scapulae?

Upper trapezius

17

What muscle is depicted?

Infraspinatus

18

What muscle is depicted?

Supraspinatus

19

What muscle is depicted?

Teres major

20

What muscle is depicted?

Teres minor

21

How much does the glenohumeral joint contribute to the full abduction of ROM?

120 degrees

22

How much does the scapulothoracic movement contribute to the full abduction of ROM?

60 degrees

23

What are the muscles that make up the rotator cuff?

Supraspinatus, infraspinatus, teres minor, and subscapularis

24

What artery supplies blood to the infraspinatus?

Suprascapular artery

25

What bones articulate at the sternoclavicular joint?

Articular notch of the sternum, the sternal end of the clavicle, and the first costal cartilage

26

What bones articulate in the acromioclavicular joint?

Concace facet on acromion process (scapula) and the convex facet on the lateral end of the clavicle

27

What bones articulate in the glenohumeral joint?

Glenoid fossa of the scapula and the head of the humerus

28

What is the blood supply of the teres major?

Circumflex scapular artery

29

What is the distal attachment of the infraspinatus?

Middle facet of the greater tubercle of the humerus

30

What is the distal attachment of the supraspinatus?

Superior facet of greater tubercle of humerus