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Functional Anatomy > The Shoulder > Flashcards

The Shoulder Flashcards

1
Q

What is the difference between the pectoral girdle and the pelvic girdle?

A

Pectoral girdle is not a true joint
It does not connect fully like the pelvic girdle
It is mobility focused

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2
Q

What bones make up the Pectoral Girdle?

A

Clavicle
Scapula

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3
Q

What 5 joints and articulations that make up the pectoral girdle?

A

Sternoclavicular joint
Acromioclavicular joint
Glenohumeral joint
Scapulothoracic articulation
Subacromial articulation

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4
Q

Landmarks on the Clavicle?(7)

A

Acromial Facet
Sternal facet
Sternal articular surface
Impression of costoclavicular ligament
Groove for subclavius muscle
Conoid tubercle
Trapezoid line

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5
Q

Landmarks on the Scapula?(9)

A

Clavicular facet
Infraglenoid tubercle
Supraglenoid tubercle
Spine of scapula
Spinoglenoid notch
Infraspinous fossa
Glenoid fossa
Supraspinous fossa
Subscapular fossa

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6
Q

What ligaments are in the sternoclavicular (SC) joint? (4)

A

Anterior/Posterior SC
Inter/costoclavicular

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7
Q

Describe the structure and function of the Anterior Sternoclavicular joint

A

S: Broad fibrous band
F: Stabilises the SC joint

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8
Q

Describe the structure and function of the Posterior Sternoclavicular ligament ?

A

S: Weak fibrous band
F: Stabilises SC joint

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9
Q

Describe the structure and function of the Costoclavicular ligament?

A

S: Short, cone shaped
F: Stabilises SC joint

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10
Q

Describe the structure and function of the Interclavicular ligament?

A

S: Continuous with deep cervical fascia
F: Stabilises SC joint

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11
Q

What are the Muscles of the Scapula?(8)

A

Trapezius
Levator Scapulae
Rhomboids
Latissimus dorsi
Subclavius
Pec Minor
Serrated anterior
Pec Major

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12
Q

Bony landmarks on the humerus?(9)

A

Neck
Infra/Supra glenoid tubercle
Greater/Lesser tuberosity
Deltoid tuberosity
Radial groove
Intertubercle groove
Olecranon fossa

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13
Q

What are the Abductors at the Glenohumeral/Shoulder Joint?

A

Middle Deltoid
Supraspinatus

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14
Q

What are the adductors at the Glenohumeral/Shoulder Joint?(four)

A

Lats
Teres major
Coracobrachilais
Pec Major

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15
Q

What are the Flexors at the Glenohumeral/Shoulder Joint?(four)

A

Anterior Delt
Pec Major
Biceps brachii
Coracobrachialis

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16
Q

What are the Extensors at the Glenohumeral/Shoulder Joint?(three)

A

Posterior Delt
Lats
Long head of triceps brachii

17
Q

What are the Medial/internal rotators at the Glenohumeral/Shoulder Joint?

A

Lats
Teres Major
Subscapularis
Pec Major
Anterior Delt

18
Q

What are the External/Lateral rotators at the Glenohumeral/Shoulder Joint?(three)

A

Infraspinatus
Teres minor
Posterior Delt

19
Q

What is the Function, Origin, Insertion and Innervation of the Teres minor ?

A

Function: Shoulder lateral rotation
Origin: Posterior aspect of the scapula
Insertion: Greater tubercle
Innervation: Axillary nerve

20
Q

What is the Function, Origin, Insertion and Innervation of the Infraspinatus ?

A

Function: Shoulder lateral rotation
Origin: Infraspinous fossa
Insertion: Greater tubercle
Innervation: Suprascapular nerve

21
Q

What is the Function, Origin, Insertion and Innervation of the Subscapularis ?

A

Function: Shoulder medial rotation
Origin: Subscapular
Insertion: Lesser tubercle
Innervation: Upper and lower subscapular nerve

22
Q

What is the Function, Origin, Insertion and Innervation of the Long head of triceps brachii?

A

Function: Shoulder extension, elbow extension
Origin: Infraglenoid tubercle
Insertion: Olecranon of ulna
Innervation: Radial nerve

23
Q

What is the Function, Origin, Insertion and Innervation of the Posterior deltoid ?

A

Function: Shoulder extension and lateral rotation
Origin: Spine of scapula
Insertion: Deltoid tuberosity
Innervation: Axillary nerve

24
Q

What is the Function, Origin, Insertion and Innervation of the Biceps Brachii?

A

Function: Shoulder flexion, elbow flexion
Origin: Supraglenoid tubercle
Insertion: Radial tuberosity antebrachial fascia
Innervation: Musculocutaneous nerve

25
Q

What is the Function, Origin, Insertion and Innervation of the Anterior Deltoid ?

A

Function: Shoulder flexion and medial rotation
Origin: Clavicle
Insertion: Deltoid tuberosity
Innervation: Axillary nerve

26
Q

What is the Function, Origin, Insertion and Innervation of the Pec major?

A

Function: Shoulder adduction and medial rotation
Origin: Clavicular head
Insertion: Crest of greater tubercle
Innervation: Medial and Lateral pectoral nerve

27
Q

What is the Function, Origin, Insertion and Innervation of the Coracobrachialis ?

A

Function: Shoulder adduction and flexion
Origin: Coracoid process
Insertion: Medial aspect of humerus
Innervation: Musculocutaneous nerve

28
Q

What is the Function, Origin, Insertion and Innervation of the Teres major ?

A

Function: Shoulder adduction and medial rotation
Origin: Posterior, inferior angle of scapula
Insertion: Crest of lesser tubercle
Innervation: Lower subscapular nerve

29
Q

What is the Function, Origin, Insertion and Innervation of the Lats?

A

Function: Shoulder adduction, medial rotation, extension
Origin: Vertebrae, ribs, iliac crest
Insertion: Floor of intertubercular groove of humerus
Innervation: Thoracodorsal nerve

30
Q

What is the Function, Origin, Insertion and Innervation of the Supraspinatus ?

A

Function: Shoulder abduction
Origin: Supraspinous fossa of scapula
Insertion: Greater tuberosity of the humerus
Innervation: Suprascapular nerve

31
Q

What is the Function, Origin, Insertion and Innervation of the Middle Deltoid ?

A

Function: Shoulder Abduction
Origin: Acromion
Insertion: Deltoid tuberosity
Innervation: Axillary nerve

32
Q

What are the 4 muscles of the Rotator cuff?

A

Subscapularis
Infraspinatus
Teres minor
Supraspinatus

33
Q

What is the function of the rotator cuff?

A

Rotator cuff prevents the sliding of the head of the humerus, allowing full range of motion (and shoulder mobility) aswell as providing stability.

Functional Anatomy (10 decks)

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