Scapula

Question 1

What is the scapula also known as?

Answer 1

The shoulder blade

Question 2

What does the scapula articulate with?

Answer 2

The humerus

The clavicle

Question 3

Where does the scapula articulate with the humerus?

Answer 3

At the glenohumeral joint

Question 4

Where does the scapula articulate with the clavicle?

Answer 4

At the acromioclavicular joint

Question 5

What does the scapula connect?

Answer 5

The upper limb to the trunk

Question 6

What shape is the scapula?

Answer 6

Triangular, flat

Question 7

What does the scapula act as?

Answer 7

The site of attachment for 17 muscles

Question 8

What is the anterior surface of the scapula termed?

Answer 8

Costal

Question 9

Why is the anterior surface termed costal?

Answer 9

Because it’s the side facing the ribcage

Question 10

What does the costal surface of the scapula covering most of its surface?

Answer 10

A concave depression, called the subscapular fossa

Question 11

What originates from the subscapular fossa?

Answer 11

The subscapularis muscle

Question 12

What is the subscapular fossa?

Answer 12

One of the rotator cuff muscles

Question 13

What originates from the superolateral surface of the costal scapula?

Answer 13

The coracoid process

Question 14

What is the corocoid process?

Answer 14

A hook-like projection

Question 15

Where does the coracoid process lie?

Answer 15

Just under the clavicle

Question 16

Why is the coracoid process significant?

Answer 16

The short head of the biceps brachii and pectoralis minor attach here
The coracobrachialis muscle originates from this projection

Question 17

What does the lateral surface of the scapula face?

Answer 17

The humerus

Question 18

What is the lateral surface of the scapula the site of?

Answer 18

The glenohumeral joint

Various muscle attachments

Question 19

What is the glenoid fossa?

Answer 19

A shallow cavity

Question 20

What is the purpose of the glenoid fossa?

Answer 20

It articulates with the humerus to form the glenohumeral joint

Question 21

What part of the lateral surface of the scapula is important clinically?

Answer 21

The superior part

Question 22

Why is the superior part of the lateral surface of the scapula important clinically?

Answer 22

As it articulates with the humerus to make up the shoulder joint, or glenohumeral joint

Question 23

What is the supraglenoid tubercle?

Answer 23

A roughening immediately superior to the glenoid fossa

Question 24

What is the importance of the supraglenoid tubercle?

Answer 24

It is the place of attachment of the long head of the biceps brachii

Question 25

What is the infraglenoid tubercle?

Answer 25

A roughening immediately inferior to the glenoid fossa

Question 26

What is the importance of the infraglenoid tubercle?

Answer 26

It is the place of attachment of the long head of the triceps brachii

Question 27

Where does the posterior surface of the scapula face?

Answer 27

Outwards

Question 28

What is the posterior surface of the scapula the site of?

Answer 28

The majority of the rotator cuff muscles in the shoulder

Question 29

What is the most prominent feature of the posterior surface of the scapula?

Answer 29

The spine

Question 30

What does the spine do?

Answer 30

Runs transversely across the scapula, dividing the surface in two

Question 31

What is the area below the spine of the scapula called?

Answer 31

Infraspinous fossa

Question 32

What does the infraspinous fossa display?

Answer 32

A convex shape

Question 33

What originates from the infraspinous fossa?

Answer 33

The infraspinatus muscle

Question 34

What is the area above the spine of the scapula called?

Answer 34

Supraspinous fossa

Question 35

How does the supraspinous fossa differ from the infraspinous?

Answer 35

It is much smaller, and more convex is shape

Question 36

What originates from the supraspinous fossa?

Answer 36

The supraspinatus muscle

Question 37

What is acromion?

Answer 37

A projection of the spine that arches over the glenohumeral joint

Question 38

What does the acromion articulate with?

Answer 38

The clavicle

Question 39

What is the clinical relevance of the scapula?

Answer 39

Fractures of the scapula  | Winged scapula

Question 40

How common are fractures of the scapula?

Answer 40

Relatively uncommon

Question 41

What are fractures of the scapula an indication of?

Answer 41

Severe chest trauma

Question 42

Where are fractures of the scapula frequently seen?

Answer 42

High speed road collisions, crushing injuries, or sports injuries

Question 43

Does the fractured scapula require intervention?

Answer 43

Not much

Question 44

Why does the fracture of the scapula not require much intervention?

Answer 44

As the tone of the muscles holds the pieces in place for healing to occur

Question 45

What muscle is involved in winging of the scapula?

Answer 45

The serratus anterior

Question 46

Where does the serratus anterior muscle originate from?

Answer 46

Ribs 2-8

Question 47

What does the serratus anterior attach too?

Answer 47

The costal surface of the scapula, pulling it against the rib cage

Question 48

What innervates the serratus anterior?

Answer 48

The long thoracic nerve

Question 49

What happens if the long thoracic nerve gets damaged?

Answer 49

The scapula protrudes out of the back when pushing with the arm

Question 50

How can the long thoracic nerve become damaged?

Answer 50

By trauma to the shoulder, repetitive movements involving the shoulder, or by structures becoming inflamed and pressing on the nerve