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

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

Flashcards in Muscles of the Upper Limb - Posterior Shoulder and Rotator Cuff Deck (50)
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1

Name nerve A

A - Dorsal scapular nerve

2

Name muscle A

A - Trapezius

3

What is the function of muscle 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

4

What is the function of muscle A?

Lateral rotation of arm (at glenohumeral joint)

A - Teres minor

N.b the teres minor is a rotator cuff muscle

5

What are the origin and insertion sites for muscle A?

Origin - Spinous processes of T2-T5 and associated supraspinous ligaments

Insertion - Posterior surface of medial border of scapula (from root of spine to inferior angle of scapula)

A - Rhomboid major

6

Name muscle A

A - Infraspinatus

7

Name muscle A

A - Trapezius

8

Name muscle A

A - Teres major

9

Name muscle A

A - Levator scapulae

10

Name muscle A

A - Levator scapulae

11

What is the function of muscle A?

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

A - Teres major

12

What is the innervation of muscle A?

Axillary nerve (C5 and C6)

A - Deltoid

13

What is the function of muscle A?

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

A - Long head of triceps brachii

14

What is the innervation of muscles A and B?

Dorsal scapular nerve (C5 and C6)

A - Rhomboid minor

B - Rhomboid major

15

What are the spaces A, B and C?

A - Triangular space

B - Quadrangular space

C - Trianglular interval

16

What are the origin and insertion sites for muscle A?

Origin - Upper 2/3rds of flattened strip of bone on posterior surface of scapula (immediately adjacent to lateral border of scapula

Insertion - Greater tubercle of humerus (Inferior facet on posterior surface)

A - Teres minor

17

Name nerve A

A - Accessory nerve (XI)

18

What are the origin and insertion sites for muscle A?

Origin - Transverse processes of C1 and C2 and posterior tubercles of transverse processes of C3 and C4

Insertion - Posterior surface of medial border of scapula (from superior angle to root of spine of scapula)

A - Levator scapulae

19

Name muscles A and B

A - Rhomboid minor

B - Rhomboid minor

20

What is the innervation of muscle A?

Accessory nerve (XI) - Motor

Anterior rami of C3 and C4 - Sensory

A - Trapezius

21

Name nerve A

A - Axillary nerve

22

What is the function of muscle A?

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

A - Supraspinatus

N.b the supraspinatus is a rotator cuff muscle

23

What is the function of muscle A?

Elevation of scapula

A - Levator scapulae

24

Name muscles A to D

A - Infraspinatus

B - Supraspinatus

C - Subscapularis

D - Teres minor

25

Name muscle A

A - Teres minor

26

Name muscle A

A - Trapezius

27

What is the innervation of muscle A?

Inferior subscapular nerve (C5, C6 and C7)

A - Teres major

 

28

What is the function of muscle A?

  1. Elevation scapula
  2. Retraction of scapula

A - Rhomboid minor

29

Name muscle A

A - Long head of triceps brachii

30

What are the origin and insertion sites for muscle A?

Origin - Infraspinous fossa of scapula (medial 2/3rds) and deep fascia covering the muscle

Insertion - Greater tubercle of humerus (middle facet on posterior surface)

A - Infraspinatus