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Human Anatomy > Unit 1_Shoulder & Axilla > Flashcards

Unit 1_Shoulder & Axilla Flashcards

1
Q

What comprises the pectoral girdle?

A

Clavicle (“collarbone”)

Scapula (“shoulder blade”)

Connects the free parts of the upper limbs to the axial skeleton

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2
Q

What movements are in the Sagittal plane?

A

Flexion

Extension

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3
Q

What movements are in the Coronal plane?

A

Abduction

Adduction

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4
Q

What movements are in the Transverse plane?

A

Internal rotation

External rotation

Horizontal abduction

Horizontal adduction

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5
Q

What are the joints of the shoulder complex?

A

Sternoclavicular Joint

Acromioclavicular Joint

Glenohumeral Joint

Scapulothoracic Joint

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6
Q

What saddle joint is not typically dislocated, connects the sternal end of the clavicle and the manubrium of the sternum, includes a clavicular notch with an interclavicular ligament, a capsule (synovial lining), and an articular disc?

A

Sternoclavicular Joint

Allows for 3 movements:
Rotation - Sagittal
Elevation/Depression - Coronal
Retraction/Protraction - Transverse

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7
Q

What gliding joint connects the acromion process and the clavicle, is typically dislocated, includes a joint capsule (fibrous tissue), coracoclavicular ligament, coracoacromial ligament, supraspinatus tunnel, and contains hyaline cartilage?

A

Acromioclavicular Joint

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8
Q

What joint connects the glenoid fossa with the proximal humeral head?

A

Glenohumeral Joint

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9
Q

What joint is not a true joint, but articulates the subscapular fossa with the posterior thorax and promotes scapulorhumeral rhythm?

A

Scapulothoracic Joint

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10
Q

What can ligaments do?

A

Restrain motion, prevent against extensive motion

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11
Q

What is a bony prominence on the scapula protruding anteriorly?

A

Coracoid Process

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12
Q

What ligament in the Acromioclavicular Joint connects the coracoid process with the clavicle?

A

Coracoclavicular ligament

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13
Q

What ligament in the Acromioclavicular Joint connects the coracoid process with the acromion process, and spans the anterior to the posterior aspect of the scapula creating the supraspinatus tunnel?

A

Coracoacromial ligament

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14
Q

What muscles support the Scapulothoracic Joint?

A

Trapezius

Rhomboids

Levator Scapulae

Serratus Anterior

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15
Q

What nerve runs alongside the serratus anterior?

A

Long Thoracic Nerve

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16
Q

If there’s injury to the Long Thoracic Nerve, what may result?

A

Winged Scapula

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17
Q

What is the most medial portion of the coracoclavicular ligament?

A

Conoid Ligament

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18
Q

The sternal end of the clavicle articulates with what structure?

A

Manubrium of sternum

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19
Q

The costal surface of the scapula is what shape? And it house what muscle?

A

Concave

Subscapularis

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20
Q

What does the glenohumeral joint articulate?

A

Glenoid fossa of the scapula and the humeral head

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21
Q

What kind of joint is the Glenohumeral Joint?

A

Ball and socket joint

22
Q

What muscles stabilize the Glenohumeral Joint?

A

The rotator cuff muscles

23
Q

What structures make up the Glenohumeral Joint?

A

Coracoid Process

Glenoid Fossa

Spine of the scapula

Acromion Process

Supraglenoid Tubercle

Infraglenoid Tubercle

24
Q

What is a ring of fibrocartilageous contents that lines the Glenoid fossa?

A

Glenoid labrum

25
Where does the long head of the biceps brachii muscle attach?
At the superior aspect of the Glenoid labrum
26
What structures make up the proximal Humerus?
Head Anatomic Neck Surgical Neck Greater/Lesser Tubercles Intertubercular Groove Deltoid Tuberosity
27
What structure spans around the Glenohumeral Joint?
Fibrous articular capsule lined with synovial membrane
28
What ligament connects the coracoid process with the humerus?
Coracohumeral Ligament
29
What ligaments connect the Glenoid fossa to the humerus and prevent excessive anterior translation of the humeral head?
Glenohumeral ligaments (Superior, Middle, Inferior)
30
What are the functions of the Glenohumeral Joint?
Flexion/Extension: Sagittal Plane Abduction/Adduction: Coronal Plane External/Internal Rotation: Horizontal (Transverse) Plane Circumduction (multi-planer)
31
What shoulder motion occurs in the sagittal plane?
Flexion/Extension
32
What does SLAP stand for?
Superior Labrum Anterior to Posterior (tear)
33
What type of joint is the glenohumeral joint?
Ball and socket joint
34
What muscles make up the rotator cuff muscles?
SITS Supraspinatus Infraspinatus Teres Minor Subscapularis
35
What rotator cuff muscle provides internal rotation of the arm, adduction and stabilization?
Subscapularis
36
What rotator cuff muscle provides abduction (early abductor) and stabilization?
Supraspinatus
37
What rotator cuff muscles provide external rotation and stabilization?
Infraspinatus Teres Minor
38
What motions does the Deltoid provide?
Anterior Deltoid Flexion, internal rotation, horizontal adduction Middle Deltoid Completes abduction Posterior Deltoid Extension, external rotation, horizontal abduction
39
What is a network of ventral primary rami that are connected and create the peripheral nerves that innervate rotator cuff muscles?
Brachial Plexus
40
What nerve innervates Supraspinatus and Infraspinatus?
Suprascapular Nerve
41
What nerve innervates Teres Minor and Deltoid?
Axillary Nerve
42
What nerve innervates Subscapularis?
Upper and Lower Subscapular Nerves
43
What are the superficial muscles of the chest acting on the Pectoral Girdle?
Deltoid Muscle Clavicular Head of the Pectoralis Major Muscle Stenocostal Head of the Pectoralis Major Muscle
44
What vein separates the Deltoid from the Pectoralis Major?
Cephalic Vein Via the Deltopectoral Groove
45
What is a deep Pectoralis muscle?
Pectoralis Minor Muscle
46
What are the functions of the Pectoralis Major Muscle?
Clavicular Head (GHJ Flexion) Sternal Head (GHJ Adduction and internal rotation)
47
What are the functions of the Pectoralis Minor Muscle?
Shoulder stabilizer
48
What muscle appears on the inferior surface of the clavicle?
Subclavius
49
What nerve innervates Pectoralis Minor and Pectoralis Major?
Medial Pectoral Nerve
50
What nerve innervates Pectoralis Major?
Lateral Pectoral Nerve
51
What is a synovial fluid sac that is situated in places where friction would otherwise occur?
Bursae of the shoulder Subacromial bursa Subdeltoid bursa

Human Anatomy (31 decks)

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