CHAPTER 4: THE SHOULDER

Question 1

Long, slender bone that lies horizontally across the root of the neck just beneath the skin

Answer 1

Clavicle

Question 2

The clavicle articulates with the (a)\_\_\_ and 1st costal cartilage medially and
with the (b)\_\_\_laterally

Answer 2

(a) Sternum

(b) Acromion process of the scapula

Question 3

Transmits forces from the upper limb to the axial skeleton and provides attachment for
muscles

Answer 3

Clavicle

Question 4

The medial two thirds of the clavicle is (a)___- forward and its lateral third is (b)___
forward

Answer 4

(a) convex

(b) concave

Question 5

Most common fractured bone in the body

Answer 5

Clavicle

Question 6

Flat triangular bone that lies on the posterior chest wall between the 2nd and 7th ribs

Answer 6

Scapula

Question 7

The lateral end of the spine is free and forms the ___, which articulates with the
clavicle

Answer 7

Acromion

Question 8

The superolateral angle of the scapula forms the pear-shaped ___, or fossa, which articulates with the head of the humerus at
the shoulder joint

Answer 8

Glenoid cavity

Question 9

Projects upward and forward above the glenoid cavity and

provides attachment for muscles and ligaments

Answer 9

Coracoid process

Question 10

The anterior surface of the scapula is concave and forms the shallow ___

Answer 10

Subscapular fossa

Question 11

The posterior surface of the scapula is divided by the spine into the (a)____
above and an (b)___

Answer 11

(a) Supraspinous fossa

(b) Infraspinous fossa

Question 12

Summit of the shoulder

Answer 12

Acromion process

Question 13

Different types of Acromion process

Answer 13

I- Flat
II- Curved
III- Hooked
IV- Upturned

Question 14

Parts of the scapula (3)

Answer 14

i. Acromion process
ii. Coracoid process
iii. Glenoid fossa/cavity

Question 15

shallow cavity that articulates with the

Answer 15

Glenoid fossa/cavity

Question 16

deepens the cavity/ enhances the depth

Answer 16

Glenoid labrum

Question 17

Articulates with the glenoid fossa to form the shoulder joint which
forms about one third of a sphere

Answer 17

Humeral head

Question 18

• end attachment of the joint capsule

Answer 18

Anatomical neck

Question 19

most common site of fracture in the humerus; may affect the axillary nerve

Answer 19

Surgical neck

Question 20

serves as attachment of the SIT muscle

Answer 20

Greater tuberosity

Question 21

sevrves as attachment of the Subscapularis mm.

Answer 21

Lesser tuberosity

Question 22

it houses the radial nerve

Answer 22

Spiral groove

Question 23

Walls of the Axilla: anterior wall

Answer 23

By the pectoralis major, subclavius, and pectoralis minor muscles

Question 24

Walls of the Axilla: posterior wall

Answer 24

By the subscapularis, latissimus dorsi, and teres major muscles
from above down

Question 25

Walls of the Axilla: medial wall

Answer 25

By the upper four or five ribs and the intercostal spaces covered by the serratus anterior muscle

Question 26

Walls of the Axilla: lateral wall

Answer 26

By the coracobrachialis and biceps muscles in the bicipital groove of the humerus

Question 27

True joints of the shoulder

Answer 27

a. Sternoclavicular jt. b. Acromioclavicular jt. c. Glenohumeral jt.

Question 28

protects the subclavian artery and brachial plexus; | prevents/limits excessive depression of distal end of clavicle

Answer 28

Interclavicular ligament

Question 29

- lessens the friction between supraspinatus tendon and acromion process

Answer 29

Subacromial bursa

Question 30

- kinematic interaction between the scapula and humerus

Answer 30

Scapulohumeral rhythm