Muscles of the Upper Limb - Posterior Shoulder and Rotator Cuff Flashcards Preview

Musculoskeletal Anatomy Diagrams > Muscles of the Upper Limb - Posterior Shoulder and Rotator Cuff > Flashcards

Flashcards in Muscles of the Upper Limb - Posterior Shoulder and Rotator Cuff Deck (33)
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1
Q

Name nerve A

A

A - Dorsal scapular nerve

2
Q

What is the function of muscle A?

A
  1. Abductor of arm (beyond initial 15º achieved by supraspinatus)
  2. Flexion of arm (clavicular fibres)
  3. Extension of arm (posterior fibres)

A - Deltoid

3
Q

What is the function of muscle A?

A

Lateral rotation of arm (at glenohumeral joint)

A - Teres minor

N.b the teres minor is a rotator cuff muscle

4
Q

Name muscle A

A

A - Infraspinatus

5
Q

Name muscle A

A

A - Trapezius

6
Q

Name muscle A

A

A - Teres major

7
Q

Name muscle A

A

A - Levator scapulae

8
Q

What is the function of muscle A?

A
  1. Medial rotation of arm (at glenohumeral joint)
  2. Extension of arm (at glenohumeral joint)

A - Teres major

9
Q

What is the innervation of muscle A?

A

Axillary nerve (C5 and C6)

A - Deltoid

10
Q

What is the function of muscle A?

A
  1. Extension of forearm (at elbow joint)
  2. Adduction of arm (at glenohumeral joint)
  3. Extension of arm (at glenohumeral joint)

A - Long head of triceps brachii

11
Q

What is the innervation of muscles A and B?

A

Dorsal scapular nerve (C5 and C6)

A - Rhomboid minor

B - Rhomboid major

12
Q

What are the spaces A, B and C?

A

A - Triangular space

B - Quadrangular space

C - Trianglular interval

13
Q

Name nerve A

A

A - Accessory nerve (XI)

14
Q

What is the innervation of muscle A?

A

Accessory nerve (XI) - Motor

Anterior rami of C3 and C4 - Sensory

A - Trapezius

15
Q

Name nerve A

A

A - Axillary nerve

16
Q

What is the function of muscle A?

A

Initiation of abduction of arm to 15º (at glenohumeral joint)

A - Supraspinatus

N.b the supraspinatus is a rotator cuff muscle

17
Q

What is the function of muscle A?

A

Elevation of scapula

A - Levator scapulae

18
Q

Name muscles A to D

A

A - Infraspinatus

B - Supraspinatus

C - Subscapularis

D - Teres minor

19
Q

Name muscle A

A

A - Teres minor

20
Q

What is the innervation of muscle A?

A

Inferior subscapular nerve (C5, C6 and C7)

A - Teres major

21
Q

What is the function of muscle A?

A
  1. Elevation scapula
  2. Retraction of scapula

A - Rhomboid minor

22
Q

What is the innervation of muscle A?

A

Axillary nerve

A - Teres minor

23
Q

What is the function of muscle A?

A
  1. Elevation of scapula
  2. Retraction of scapula

A - Rhomboid major

24
Q

What is the function of muscle A?

A
  1. Elevator of scapula
  2. Rotator of scapula (during abduction of humerus above horizontal)
  3. Retraction of scapula (middle fibres)
  4. Depress scapula (lower fibres)

A - Trapezius

25
Q

Name muscles A and B

A

A - Rhomboid minor

B - Rhomboid major

26
Q

Name muscles A and B

A

A - Levator scapulae

B - Trapezius

27
Q

What is the innervation of muscle A?

A

Radial nerve (C6, C7 and C8)

A - Long head of triceps brachii

28
Q

What is the function of muscle A?

A

Lateral rotation of arm (at glenohumeral joint)

A - Infraspinatus

N.b the infraspinatus is a rotator cuff muscle

29
Q

What is the innervation of muscle A?

A

Suprascapular nerve (C5 and C6)

A - Supraspinatus

30
Q

Name muscle A

A

A - Deltoid

31
Q

What is the innervation of muscle A?

A

Suprascapular nerve (C5 and C6)

A - Infraspinatus

32
Q

What is the innervation of muscle A?

A

Anterior rami of C3 and C4

Braches of dorsal scapular nerve

A - Levator scapulae

33
Q

Name muscle A

A

A - Supraspinatus