Deltoid, Dorsal, Scapular, Pectoral Regions (lecture)

Question 1

Shoulder joint is also known as…

Answer 1

The glenohumeral joint

Question 2

The head of the humerus articulates with…

Answer 2

The glenoid fossa of the scapula

Question 3

Stability of the glenohumeral joint is provided by..

Answer 3

The rotator cuff muscles that surround the joint

Question 4

What muscles enclose the quadrangular space

Answer 4

Long head of triceps brachii, Teres major, Teres minor, surgical neck of humerus

Question 5

What muscles enclose the triangular space

Answer 5

Teres minor, Teres major, long head of triceps brachii

Question 6

What space does the supraspinatus tendon pass through?

Answer 6

Passes beneath the acromion and acromioclavicular ligament (very little disturbance)

Question 7

What two muscles function in the lateral rotation of the arm?

Answer 7

infraspinatus and teres minor

Question 8

What muscles initiates arm abduction?

Answer 8

supraspinatus

Question 9

What muscle(s) function in the medial rot., adduction, and extention of the arm?

Answer 9

teres major and latissimus dorsi

Question 10

What muscles make up the triangular interval?

Answer 10

teres major, long head of triceps brachii, humerus

Question 11

What muscle of the rotator cuff functions in medial rotation of the arm?

Answer 11

Subscapularis

Question 12

What vein can be found at the upper wall of pectoralis major?

Answer 12

cephalic

Question 13

What tissue encloses pectoralis minor?

Answer 13

clavipectoral fascia

Question 14

muscles of rotator cuff?

Answer 14

SITS

Question 15

Why do dislocations of the humeral head tend to be inferior and anterior

Answer 15

Inferior because all muscles are supporting on superior aspect.
Anterior because of pec major pulling foward, and muscles that support the joint (SITS) are on the backside

Question 16

What nerve(s) or vessel(s) are found in the triangular space?

Answer 16

Circumflex scapular artery

Question 17

What nerve(s) or vessel(s) are found in the quadrangular space?

Answer 17

Axillary nerve

Posterior circumflex humeral artery

Question 18

What nerve(s) or vessel(s) are found in the triangular interval?

Answer 18

Radial nerve

Deep artery of arm

Question 19

Superficial vein branching from brachial vein on medial side of the humerus.

Answer 19

basilic

Question 20

superficial vein branching from axillary v. on lateral side of humerus

Answer 20

cephalic

Question 21

Where can the transverse cervical artery be found?

Answer 21

Deep to the trapezius running vertically

Question 22

Artery following the medial border of the scapula

Answer 22

Dorsal scapular artery

Question 23

What muscle(s) function in medial rotation of the arm?

Answer 23

Teres major, latissimus dorsi, pec major, subscapularis