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Arthrex General Onboarding Module 1 > Anatomy Of The Shoulder With Arthroscopy > Flashcards

Anatomy Of The Shoulder With Arthroscopy Flashcards

1
Q

What bones make up the shoulder?

A

Humerus, Scapula & Clavicle

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2
Q

The bones of the shoulder are connected by how many synovial joints?

A

Three

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3
Q

What are the synovial joints of the shoulder?

A

The glenohumeral joint, the acromiclaviculat joint and the sternoclavicular joint

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4
Q

The sternoclavicular joint connects the medial aspect of the clavicle to the _______ ?

A

Manubrium

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5
Q

The Acromioclavicular or (AC) joint connects the distal articulating surface of the clavicle to the ______?

A

Acrimoion process of the scapula

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6
Q

The AC joint is stabilized by how many ligaments?

A

Three

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7
Q

What ligament connects the articulating surfaces of the distal head of the clavicle to the acromion process?

A

The acromioclavicular ligament

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8
Q

ligaments anchor the distal aspect of the clavicle inferiorly to the _______?

A

Coracoid process

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9
Q

The glenohumeral joint is made up of which two structures?

A

Glenoid fossa of the scapula and the head of the humerus

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10
Q

What are the static restraints of the glenohumeral joint?

A

The glenoid labrum and the joint capsule which contains the glenohumeral ligaments

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11
Q

What are the 3 ligaments of the joint capsule

A

Superior Glenohumeral Ligament
(SGHL)
Middle Glenohumeral Ligament (MGHL)
Inferior Glenohumeral Ligament
(IGHL)

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12
Q

The SGHL connects medially to the Supraglenoid tubercle and laterally at the ________?

A

Superior aspect of the lesser tuberosity on the humerus

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13
Q

Laterally the SGHL makes up the _______ or _________

A

Bicep sling or medial pulley

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14
Q

The medial pulley that houses the long head of the bicep tendon consists of the __________ & __________?

A

The SGHL (which is the deep floor of the pulley)

&

The Coracohumeral Ligament (which is the superficial roof of the pulley)

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15
Q

What ligaments limit superior translation and external rotation when the arm is ADducted ?

A

The SGHL or Superior glenohumeral ligament

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16
Q

What ligament is inferior to the SGHL?

A

The MGHL or Middle Glenohumeral Ligament

17
Q

What ligament passes obliquely posterior to the Subscapularis tendon?

A

The MGHL

18
Q

The MGHL originates from the anterior/superior surface of the ________ and the __________

A

Labrum & Glenoid Neck Medially

19
Q

The MGHL inserts where?

A

Laterally on the lesser tuberosity of the humerus

20
Q

What ligament functions to limit anterior and posterior humeral translation with the arm abducted and externally rotated?

A

The MGHL

Note: also a secondary stabilizer to inferior translation in ADduction

21
Q

Which ligament is referred to as a hammock or a axillary pouch?

A

The inferior glenohumeral ligament complex

22
Q

The ______complex is the most important restraint of the Glenohumeral joint with the arm externally rotated in neutral and abducted position?

A

IGHL (Inferior Glenohumeral Ligament)

23
Q

When the arm is ABducted which ligament limits inferior translation of the humeral head?

A

The Inferior Glenohumeral Ligament (IGHL)

24
Q

With the arm ABducted and externally rotated what limits anterior translation of the humeral head?

A

The Anterior Band of the IGHL

25
Q

When the arm is Abducted and internally rotated, what prevents posterior translation?

A

The posterior band of the IGHL

26
Q

What are the dynamic constraints of the shoulder?

A

Muscles , Tendons, Bursa and recesses

27
Q

What are the muscles of the rotator cuff from anterior to posterior?

A

Subscapularis
Supraspinatus
Infraspinatus
Teres Minor

28
Q

What shape is the Subscapularis muscle and where does it originate and insert?

A

Large triangle
Originates on the Subscapular Fossa

Insets on the lesser tuberosity of the numerous

29
Q

What is the triangle space between the Subscapularis anteriorly and supraspinatus superiorly

A

The rotator interval which is used by surgeons to place anterior portals

30
Q

Where does the supraspinatus originate and insert?

A

Supraspinous Fossa and the greater tuberosity of the humeral head

31
Q

The infraspinatus and the teres minor both originate on the ?

A

Infraspinous Fossa

32
Q

The supraspinatus, infraspinatus and teres minor all insert on ?

A

The greater tuberosity of the humerus

33
Q

What anatomical variant of the humeral head indicates the transition between the supraspinatus and infraspinatus tendon?

A

The “bare area”
and is a subtle triangle

34
Q

What arteries make the Arterial supply of the shoulder complex?

A

The aortic arch
Brachioceohalic trunk
Subclavian Artery
Axillary artery
Brachial artery

35
Q

List the venous return of the shoulder complex distal to medial

A

Brachial, cephalic, basilica, Axillary , subclavian, brachiocephalic and superior vena cava

36
Q

What nerve innervates the supraspinatus and the infraspinatus?

A

The suprascaplular nerve

37
Q

What nerve innervates the deltoid, long head of the triceps and teres minor of the rotator cuff

A

Axillary Nerve

38
Q

What nerve provides motor function to the anterior compartment of the arm?

A

The musculocutaneous nerve

Arthrex General Onboarding Module 1 (5 decks)

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