Shoulder complex bones

Question 1

The clavicle is a s shaped bone that

Answer 1

extends between the sternum and the scapula and its a very frequent site of fracture

Question 2

The clavicle has 3 sections

Answer 2

• sternal end (medial)
• shaft (body)
• acromial end (lateral)

Question 3

The acromion is situated on the

Answer 3

Lateral aspect of the clavicle.

Question 4

The acromion articulates

Answer 4

with the lateral aspect of the clavicle and the inferior surface is roughened for the attachment of the coracoclavicular ligament

Question 5

The medial end of the clavicle articulates with

Answer 5

the medial end of the sternum and the inferior surface is roughened for the costoclavicular ligament

Question 6

The shaft or body of the clavicle

Answer 6

is an important attachment for many muscles

Question 7

The sternum has 3 main parts

Answer 7

1. manubrium
2. body
3. xiphoid process

Question 8

the manubrium has 2

Answer 8

clavicular notches that articulate with the clavicle to form the sterno-clavicular joints

Question 9

the sternum articulates with the ribs

Answer 9

1 -7

Question 10

The scapula is an important site for muscle attachments and

Answer 10

serves as a connection between the humerus and the clavicle

Question 11

What are the scapular borders

Answer 11

• superior border
• lateral border
• medial border

Question 12

What are the scapular angles

Answer 12

• superior angle

- inferior angle

Question 13

Posterior scapular bony points

Answer 13

acromion, supraspinous fossa, infraspinous fossa, spine of the scapula, inferior angle, superior angle, medial and lateral border

Question 14

Lateral scapular bony points

Answer 14

glenoid fossa, supraglenoid tubercle, infraglenoid tubercle, lateral border, coracoid process, acromion

Question 15

Anterior scapular bony points

Answer 15

Suprascapular notch, coracoid process, subscapular fossa, lateral and medial border

Question 16

The scapula articulates anteriorly with the ____ to form the ______ joint

Answer 16

ribcage, scapulothoracic joint

Question 17

The glenoid fossa/cavity articulates with the _____ to form the ______ joint

Answer 17

humerus ,glenohumeral joint

Question 18

The humerus articulates proximally with the _____ to form the ____ joint (shoulder) and distally with the ____ and ____ to form the ______ and _____ joints.

Answer 18

glenoid fossa, glenohumeral joint

radius and ulna, humero-ulnar joint, humero-radial joint

Question 19

What are the bony points of the proximal end of the humerus

Answer 19

• head (articulates with the glenoid fossa of scapula)
• anatomical neck (inferiorly to head and attachment site for the joint capsule)
• surgical neck (frequent site of fractures, can damage axillary nerve)
• greater tuberosity
• lesser tuberosity
• intertubercular/ bicipital groove (between lesser and greater tuberosity)

Question 20

What are the bony points of the shaft of the humerus (common site of fracture)

Answer 20

-deltoid tuberosity (rough area on the lateral aspect)