Shoulder and arm Flashcards Preview

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Flashcards in Shoulder and arm Deck (44):
1

What are the 4 joints of the pelvic girdle

SAGS
Sternoclavicular
Acromioclavicular joint
Glenohumeral
Scapulothoracic

2

What 2 ligaments make up the sternoclavicular joint?

Sternoclavicular
Costoclavicular

3

What ligaments make up the acromioclavicular joint?

Acromioclavicular
Coracoacromion
Coracoclavicular
- Conoid and Trapezoid (more lateral) Ligaments

4

What ligaments make up the glenohumeral joint

Glenohumeral (3 - S, M, I)
Transverse humeral
Coracohumeral

5

2 functions of the rotator cuff muscles

Hold humerus in glenoid cavity
depress humeral head to minimise dislocation

6

Name 4 anterior pectoral muscles

Pectoralis Major
Pectoralis Minor
Subclavius
Serratus Anterior

7

Name 5 Posterior Pectoral Muscles

Levator Scapulae
Rhomboids Major and Minor
Trapezius
Latissimus Dorsi

8

Intrinsic Shoulder Muscles (2)

Deltoid
Teres Major

9

Rotator Cuff (4)

Supraspinatus
Infraspinatus
Subscapularis
Teres Minor

10

Anterior compartment of arm and nerve

Biceps
Coracobrachialis
Brachialis

Musculocutaneous

11

Posterior compartment of arm and nerve

Triceps
(Anconeus)
Radial

12

Pectoralis Major, Nerve, Function, Attachments

Lateral and medial pectoral nerves
Flexion Adduction Internal rotation (GHJ)
Proximal
Medial 1/3 clavicle, Sternum, Costal cartilages I – VII
Distal
Lateral lip of the intertubercular groove

13

Pectoralis minor Innervation

Medial pectoral nerve

14

Serratus Anterior Nerve, Function, Attachments

Long Thoracic Nerve (C5-7)
Protraction at STJ, Rotation
Centring the scapula on the thoracic wall
Origin
Lateral surface of ribs I - VIII
Insertion
Medial border to the scapula

15

Trapezius Nerve, Function, Attachments

Accessory Nerve (CNXI)
Multiple movements of the STJ
(Elevation/depression/rotation/retraction)


Proximal
Ligamentum nuchae and thoracic spine
Distal
Posterior 1/3 clavicle, Acromion, Scapular spine

16

Latissimus dorsi Nerve, Function, Attachments

Thoracodorsal nerve
Adduction, Medial rotation Extension [L=AME] GHJ

Proximal: Vertebral column from T7 to ileum
Distal: Floor of intertubercular groove

17

Deltoid Nerve, Function, Attachments

Axillary nerve
Abduction beyond 15⁰ (GHJ)

Proximal (same as the distal attachments for the trapezius)
Posterior 1/3 clavicle
Acromion
Scapular spine

Distal
Deltoid tuberosity (humerus)


18

Teres Major

Medial rotation, Adduction, Extension (tiny bit) [TAME]
Proximal
Inferior angle of the scapula
Distal
Medial lip of intertubercular groove

19

Rotator Cuff muscles Distal attachments and exception

Distal attachments:
all insert onto the greater tubercle [lat rotation]
Except for subscapularis, which inserts onto the lesser tubercle [medial rotation]

20

4 muscles for flexion at GHJ

Pectoralis Major
Anterior fibres of Deltoid
Coracobrachialis
Biceps Femorii

21

2 muscles for Extension at GHJ

Posterior fibres of deltoid
Latissimus Dorsi

22

2 muscles for Abduction at GHJ

Supraspinatus (15) the central fibres of deltoid

23

3 muscles for Adduction at GHJ

Pectoralis Major
Latissimus Dorsi
Teres Major

24

External Rotation at GHJ

Infraspinatus

25

Internal Rotation at GHJ

Subscapularis

26

Resisting dislocation - 5 muscles

Deltoid, Rotator Cuff, tendon of long head of biceps, short head of biceps, coracobrachialis

27

Posterior wall of axilla - 3 muscles

Subscapularis, teres major and latissimus dorsi

28

Roots of Musculocutaneous Nerve, what it supplies and what it continues as?

C5. C6, anterior arm compartment
Lateral cutaneous nerve

29

Roots of Axillary Nerve, what it supplies (2 muscles)
(where does it emerge?)

C5, C6
Deltoid and teres minor
(Emerges from the posterior cord of the brachial plexus alongside the radial nerve)

30

Roots of Radial Nerve and what it supplies
Where does it lie on the humerus?

What does it divide into above the elbow?

C5, 6, 7, 8, T1
posterior compartments of the arm and forearm
Radial groove

Superficial radial nerve
Posterior interosseous nerve

31

Roots of Median Nerve what it supplies
Where is it at the level of the elbow and how can it be damaged?

C6, 7, 8, T1
anterior compartments of the arm and forearm
It lies medial to the brachial artery
Damaged in supracondylar fracture

32

Roots of Ulnar Nerve
What is its course?

C8/T1 anterior compartment of the forearm and hand
(No branches in the upper arm)

Upper arm in the anterior compartment initially but pierces the intermuscular septum and distally runs in the posterior compartment; Lies posterior to the medial epicondyle and can be damaged

33

3 ligaments that stabilised the elbow joint

Annular ligament of radius
Radial collateral ligament (lateral)
Ulnar collateral ligament (medial)

34

What are the 3 things that connect the Distal Radio-Ulnar Joint

Palmar radio-ulnar ligament
Dorsal radio-ulnar ligament
Articular disk (triangular fibrocartilage)

35

Coracobrachialis: Nerve, Function, Attachments

Musculocutaneous
Flexion GHJ
Proximal attachment:
Coracoid process
Distal attachment:
Humeral shaft

36

Biceps Brachii: Nerve, Function, Attachments

Musculocutaneous
Flexion GHJ, Flexion of elbow, Supination of the forearm at the proximal radio-ulnar joint.
Proximal attachments(two heads):
Short: Coracoid process
Long: Supraglenoid tubercle
Distal attachments:
Radial tuberosity
Bicipital aponeurosis

37

Triceps Nerve Function Attachments

Radial
Extension of the elbow, LH - GHJ extension
Proximal attachments (3 heads):
Long: Infraglenoid tubercle
Medial and lateral: Posterior humeral shaft
Distal attachments:
Olecranon


38

Anterior Forearm - 4 muscles, Nerve Function Attachments

a2/37

39

Anterior Forearm – Intermediate

Flexor digitorum superficialis (Median nerve)
Flexion at the proximal interphalangeal, MCP and wrist joints

Distal - Middle phalanx



40

Anterior forearm - Deep

Median nerve except for FDP to ring and little fingers (ulnar nerve)

Flexor digitorum profundus: Flexion of interphalangeal joints and wrist
Distal: Anterior aspect of distal phalanges
Flexor pollicus longus: Flexes interphalangeal joints of thumb
Pronator quadratus

41

Posterior Forearm 3 subdivisions, 2 exceptions and innervation

Extension of Wrist
Extension of Digits
Extension of Thumb
Supinator
Brachioradialis: Elbow flexion

(posterior interosseous nerve, which is a continuation of the deep motor branch of the )
Radial nerve.

42

Wrist Extensors

Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris

43

Extensor of digits

Extensor digitorum (all 4 digits)
Extensor indicis (index digit)
Extensor digiti minimi (little finger)

44

Extension of the thumb

Extensor pollicis brevis
Extensor pollicis longus
Abductor pollicis longus