MSK- Shoulder Joint Flashcards Preview

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Flashcards in MSK- Shoulder Joint Deck (18):
1

Flexion

Biceps Brachii
Pectoralis Major
Coracobrachialis
Anterior Deltoid

2

Abduction up to 15 degrees

Supraspinatus

3

Abduction from 15-90 degrees

Middle Fibres of the Deltoid

4

Abduction from 90 degrees

Scapula rotated by Trapezius and Serratus Anterior

5

Adduction

Pectoralis Major
Lattisimus Dorsi
Teres Major

6

Medial Rotation

Contraction of Subscapularis
Pectoralis Major
Lattisimus Dorsi
Teres Major
Anterior Deltoid

7

Lateral Rotation

Contraction of Infraspinitus
Teres Major

8

Which dislocation is most prevalent?

Anterior

9

What blocks superior movement?

Coraco-acromial Arch

10

What nerve can be damaged by injuries to the Shoulder Joint?

Auxiliary Nerve

Causes loss of sensation in regimental patch area and paralysis of Deltoid

Can also stretch the Radial Nerve

11

What is rotator cuff tendinitis?

Inflammation of the muscle tendons usually due to overuse
Causes painful arc syndrome (pain at mid abduction)

12

Which arteries supply the shoulder joint

Anterior/Posterior Circumflex Humeral arteries
Suprascapular Artery

13

Nerves which supply

Roots C5/6
Auxiliary
Suprascapular
Lateral nerves

14

What are the joints that articulate in the shoulder?

Head of Humerus
Glenoid Cavity of Scapula

15

Why is it unstable?

Head is much larger than the cavity
Glenoid labrum tries to stabilise, 'deepens' the Glenoid fossa

16

What are the ligaments of the Rotator Cuff, and their location?

Glenohumeral - superior, middle, inferior
Transverse Humeral Ligament
Coracoacromial
Coracohumeral

17

Muscles in the Shoulder Joint (Rotator Cuff muscles)

Supraspinatus
Teres Minor
Infraspinitus
Subscapularis

18

Which muscles produce extension?

Posterior Deltoid
Lattisimus Dorsi
Teres Major