😀 EASY

MSK presentations are so common in primary, and secondary, practice.  In fact, most medical schools mandate 5-20 weeks of ortho placement.  As such, knowledge of the bones, muscles and joints of the body are integral.  Have a go at this MCQ quiz! 

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MSK Upper Limb Anatomy Review

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Question 1
Which bones form the pectoral girdle?
A
Scapula
B
Clavicle
C
Humerus
D
Radius
E
Ulna
Question 2
The long thoracic nerve innervates which muscle?
A
Serratus anterior
B
Serratus posterior superior
C
Serratus posterior inferior
D
Latissimus dorsi
E
Pectoralis major
Question 3
The suprascapular nerve innervates which muscle(s)?
A
Supraspinatus
B
Infraspinatus
C
Teres minor
D
Teres major
E
Subscapularis
Question 4
The dorsal scapular nerve supplies which muscles?
A
Levator scapulae
B
Rhomboid major
C
Rhomboid minor
D
Pectoralis major
E
Pectoralis minor
Question 5
Which roots of the spinal cord form parts of the brachial plexus?
A
C5
B
C6
C
C7
D
C8
E
T1
Question 6
Which is the more proximal part of the brachial plexus?
A
Trunks
B
Divisions
C
Cords
D
Roots
E
Branches
Question 7
The innervation of serratus anterior has which of the following root values?
A
C3
B
C4
C
C5
D
C6
E
C7
Question 8
The radial nerve innervates which muscle type?
A
Flexors
B
Extensors
C
Abductors
D
Adductors
E
Medial rotators
Question 9
Cords of the brachial plexus are so named for their relation to which structure?
A
Axillary vein
B
Cephalic vein
C
Brachial vein
D
Basilic vein
E
Axillary artery
Question 10
Protraction of the scapula, about the scapulothoracic joint, is also named by which other anatomic term?
A
Abduction
B
Adduction
C
Medial rotation
D
Lateral rotation
E
Flexion
Question 11
The trapezius is innervated by a cranial nerve.  But which other muscle does this nerve innervate?
A
Latissimus dorsi
B
Deltoid
C
Teres minor
D
Sternocleidomastoid
E
Serratus posterior superior
Question 12
What is the root value of the nerve supplying rhomboid major?
A
C5
B
C6
C
C7
D
C8
E
T1
Question 12 Explanation: 
Dorsal scapular nerve (C5)
Question 13
Which structure increases the depth of the shoulder ball and socket joint?
A
Joint capsule
B
Coracohumeral ligament
C
Coracoacromial ligament
D
Glenoid labrum
E
Acromioclavicular joint
Question 14
A necessary defect in the shape of the glenohumeral joint capsule predisposes the joint to which type of dislocation?
A
Anterior
B
Posterior
C
Lateral
D
Superior
E
Inferior
Question 14 Explanation: 
Axillary fold, allowing abduction (through laxity), makes the inferior capsule weaker.
Question 15
Which is not a muscle of the rotator cuff?
A
Supraspinatus
B
teres major
C
teres minor
D
subscapularis
E
infraspinatus
Question 16
Initial abduction of the shoulder joint is undertaken by which muscle?  
A
Supraspinatus
B
Iinfraspinatus
C
Teres minor
D
Teres major
E
Subscapularis
Question 17
Teres minor inserts onto which surface of the humerus?
A
Superior
B
Posterior
C
Anterior
D
Medial
E
Lateral
Question 18
The subscapularis inserts into which portion of the humerus?
A
Greater tubercle
B
Lesser tubercle
C
Greater trochanter
D
Lesser trochanter
E
Intertrochanteric crest
Question 19
The subscapularis muscle is supplied by which nerves?
A
Dorsal scapular
B
Long thoracic
C
Upper subscapular
D
Lower subscapular
E
Supraspinous
Question 20
Which bone does the deltoid insert onto?
A
Humerus
B
Radius
C
Ulnar
D
Clavicle
E
Scapula
Question 21
When is the lateral deltoid body most powerful?
A
Partial upper limb flexion
B
Partial upper limb extension
C
Partial upper limb abduction
D
Partial upper limb adduction
E
Partial upper limb medial rotation
Question 22
The axillary nerve innervates which muscles?
A
Trapeizus
B
Teres major
C
Teres minor
D
Deltoid
E
Coracobrachialis
Question 23
What is the major action of teres major?
A
Medial rotation
B
Lateral rotation
C
Flexion
D
Extension
E
Abduction
Question 24
What is the innervation of teres major?
A
Upper subscapular
B
Lower subscapular
C
Median
D
Radial
E
Ulnar
Question 25
which muscle of the rotator cuff is in closest approximation to the subacromial bursa?
A
supraspinatus
B
infraspinatus
C
subscapularis
D
teres major
E
teres minor
Question 26
which muscle(s) below do not insert on the lateral tubercle of the proximal humerus?
A
supraspinatus
B
infraspinatus
C
teres major
D
teres minor
E
subscapularis
Question 26 Explanation: 
the lateral proximal tubercle is the site of the greater tubercle. the lesser tubercle is medial, and the attachment of the teres major. all others named attach to the (laterally oriented) greater tubercle.
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