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ANATOMY > Shoulder Region > Flashcards

Shoulder Region Flashcards

1
Q

Name the Joints of the Shoulder Region

A

Acromioclavicular Joint
Sternoclavicular Joint
Glenohumeral Joint

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2
Q

What type of joint is the ACROMIOCLAVICULAR Joint?

A

Synovial Plane Joint

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3
Q

What type of joint is the STERNOCLAVICULAR joint?

A

Synovial Saddle Joint

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4
Q

What type of joint is the Glenohumeral Joint?

A

Synovial Multi-axial Ball and Socket Joint

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5
Q

What are the articular surfaces of the AC joint?

A

Small oval facets on the lateral clavicle and medial acromion

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6
Q

What ligament attaches the acromion and clavicle?

A

Acromioclavicular ligament

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7
Q

What is the joint capsule of the Sternoclavicular joint?

A

Anterior Sternoclavicular ligament
Posterior Sternoclavicular ligament
Inter-clavicular ligament

Costoclavicular ligament

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8
Q

What are the articular surfaces of the Glenohumeral Joint?

A

Humeral Head covered in hyaline cartilage & Glenoid Fossa covered in Glenoid labrum

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9
Q

What is the function of the Glenoid Labrum?

A

It is a fibro-cartilaginous rubbery structure which encircles the Glenoid cavity deepening the socket providing static stability to the GH joint.

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10
Q

What is the joint capsule of the Glenohumeral Joint?

A

Capsular Ligaments:

Superior GHL
Middle GHL
Inferior GHL
Transverse GHL

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11
Q

What are the Accessory Ligaments of the Glenohumeral Joint?

A

Coracohumeral ligament
Coracoacromial ligament

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12
Q

List the muscles of the rotator cuff

A

Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

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13
Q

Name the PRIME MOVER and list the muscles involved in the movement: Shoulder Flexion

A

PRIME MOVER: Deltoid
Pectoralis Major
Coracobrachialis

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14
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER EXTENSION

A

PRIME MOVER: Deltoid (posterior fibres)
Teres Major
Latissimus Dorsi

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15
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ABDUCTION

A

PRIME MOVER: Deltoid (middle fibres)
Supraspinatus (initiates the movement)

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16
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ADDUCTION

A

PRIME MOVER: Pectoralis Major
Latissimus Dorsi
Teres Major
Coracobrachialis

17
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER MEDIAL ROTATION

A

PRIME MOVER: Subscapularis
Pectoralis Major
Latissimus Dorsi
Deltoid (Anterior fibres)

18
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER LATERAL ROTATION

A

PRIME MOVER: Infraspinatus
Teres Major
Deltoid (posterior fibres)

19
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER PROTRACTION

A

PRIME MOVER: Seratus Anterior
Pectoralis Minor

20
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER RETRACTION

A

PRIME MOVER: Rhomboid Major
Rhomboid Minor
Middle Trapezius

21
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ELEVATION

A

PRIME MOVER: Upper Fibres of Trapezius
Levator Scapulae

22
Q

Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER DEPRESSION

A

PRIME MOVER: Seratus Anterior
Pectoralis Minor

23
Q

Explain the Normal Scapulo-humeral Rhythm

A

The combined movement that occurs at the Glenohumeral joint and Scapulo-humeral joint in a ratio of 2:1

24
Q

What is the ROM during SHOULDER FLEXION?

A

110 - 170 degrees

25
Q

What is the ROM during SHOULDER EXTENSION?

A

50 - 70 degrees

26
Q

What is the ROM during SHOULDER ABDUCTION?

A

100-120 degrees

27
Q

What is the ROM during SHOULDER ADDUCTION?

A

30 - 45 degrees

28
Q

What is the ROM during SHOULDER MEDIAL ROTATION?

A

90 degrees

29
Q

What is the ROM during SHOULDER LATERAL ROTATION?

A

80 degrees

ANATOMY (10 decks)

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