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Flashcards in Shoulder, anterior and posterior chest Deck (30)
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1

What are the pectoral region muscles?

1. Pectoralis major
2. pectoralis minor
3. Serratus anterior
4. Subcalviculus

2

Pectoralis major

Origin- Clavicular head and sternocostal head
Insert- sulcus of humerus
Function= Adducts and medially rotates

3

Pectoralis minor

Origin- 3rd and 4th rib
Inserts- caracoid process
Function= stabalises scapular, drawing in anterior inferiorly

4

Subclaviculus

Origin- 1st rib
Insert- mid clavicle
Function= Anchors clavicle

5

Serratus anterior

Origin- Rib 1-8 lateral
Insert - medial border of scapula
Function= rotates scapula, allows arm raised over 90^oc

6

Extrinsic muscles of the shoulder

SUPERFICIAL
1. Trapezius
2. Latissimus dorsi

DEEP
1. levator scapulae
2. Rhomboid major and minor

7

Trapezius

Origin- Skull and C7 to T12
Insert- Clavicle, acromion
Function= elevate and abducts

8

Latissimus dorsi

Origin- T6-T12
Insert- Sulcus of humerus
Function= Extend, adduct and medially rotate

9

Levator Scapulae

Origin- C1 and C4
Insert- medial border of scapula
Function= Elevates

10

Rhomboid major and minor

Origin
Major- T2-T3
Minor- C7- T1
Insert- Medial border of scapula
Function= retract and rotate scapulate

11

Intrinsic muscles of the shoulder

Supraspinatus
infraspinatus
subscapularis
teres minor
teres major
deltoid

12

What are the 4 rotator cuff muscles

Origin- Scapula
Insert- Humeral head
1. Supraspinatus
2. infraspinatus
3. Subscapularis
4. teres minor

13

Suprspinatus

Origin- Fossa of scapula
Insert- greater tubercle of humerus
Function= Abducts 0-15

14

Infraspinatus

Origin- infraspinatus fossa
Insert- greater tubercle of humerus
Function= laterally rotates

15

Subscapularis

Origin- Subscapular fossa
Insert- lesser tubercle
Function= Medially rotates

16

Teres minor

Origin- Posterior scapula
Insert- Greater tubercle
Function= laterally rotates

17

Teres major

Origin- Inferior angle of scapula
Insert- Interventricular groove of humerus
Function= adducts

18

Deltoid

Origin- scapula
Insert- deltoid tuberosity on lateral humerus
Function= flex and extend arm at shoulder

19

Parts of the scapula

Anterior:
-Acronium
-Corocoid process-0 hook like projection, lies underneath calvicle
-glenoid process
-Subscapula fossa- concave

Posterior:
-Coronoid process
-Acronium- projection of spine
-Glenoid process
- Supraspinatus fossa- smaller and more convex
- Infraspinatus fossa- convex

20

Lateral surface of the scapula

glenoid process- shallow cavity that articulates with the humerus
tuberglenoid tubercle- superior glenoid fossa, attach head of biceps brachii
infraglenoid tubercle- inferior, attach head of triceps brachii

21

Tubercle

Where muscle or ligament attaches

22

Articulations of scapula

1. Glenohumeral
2. sternoclavicular

23

Articulations of clavicle

1. Sternoclavicular
2. Acromioclavicular

24

Glenohumeral

Head of humerus and glenoid fossa
Movement- axial rotation and anterior/ posterior movement

25

Sternoclavicular

Saddle joint between the sternum manibrum and clavicle
Movement:
-Elevates- Shrugging or abducting about 90
-Depression- drooping shoulders and extending arm
- Protraction- anterior shoulder movement
-Retraction- posterior
-Rotation- arm raised over head

26

Glenohumeral joint

Glenoid process and head of humerus
ball and socket joint
Movement:
-Extension
-flexion
-Abduction- 0-15
-Adduction
-Medial and lateral rotation

27

Axillar region

underneath of the glenohumeral joint at the junction of the upper limb and thorax

28

Clavicle

Sternum to scapula
can be palpated

29

Parts of the clavicle

Sternal end
-facet for articulation with manibrum
- impression of costoclavicular ligament

Acromial end
-Conoid tubercle- attachment of conoid ligament
- Trapezoid line- attach trapezoid ligament

30

Humerus parts

Proximal
- Greater tubercle= supraspinatus, infraspinatus and teres minor
-lesser tubercle= subscapularius
-Head
-Interubercular sulcus- groove between tubercles for biceps brachii