Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

T1 ANATOMY > Joints of the Shoulder > Flashcards

Joints of the Shoulder Flashcards

1
Q

T/F - The scapulothoracic joint is considered a true anatomical joint.

A

False - The scapulothoracic joint is considered a FUNCTIONAL joint.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 6 scapulothoracic movements?

A

1) Elevation
2) Depression
3) Retraction
4) Protraction
5) Upward/Lateral Rotation
6) Downward/Medial Rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A gliding motion with the scapula moving superiorly.

A

Elevation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A gliding motion with the scapula moving inferiorly.

A

Depression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A gliding motion with the scapula moving towards the spine.

A

Retraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A gliding motion with the scapula moving away from the spine.

A

Protraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The glenoid fossa moves superiorly and the inferior angle moves laterally during abduction of the arm.

A

Upward/Lateral Rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The glenoid fossa moves inferiorly and the inferior angle moves medially during adduction of the arm.

A

Downward/Medial Rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A joint where the sternal end of the clavicle articulates with the manubrium. It has an articular disc that prevents medial displacement of the clavicle and helps dissipate forces.

A

Sternoclavicular (S-C) Joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What type of joint is the S-C joint?

A

Synovial Saddle Joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What movements occur at the S-C joint?

A

1) Superior/Inferior Glide
2) Anterior/Posterior Glide
3) Rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The sternal end of the clavicle moves __________ during scapular depression and __________ during scapular elevation.

A

Superiorly
Inferiorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The S-C joint has an articular _____ that prevents ______ displacement of the clavicle and helps dissipate forces.

A

Disc
Medial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which joint is the only true articulation between the upper limb and axial skeleton?

A

Sternoclavicular (S-C) Joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the 4 ligaments of the S-C joint?

A

1) Anterior Sternoclavicular Ligament
2) Posterior Sternoclavicular Ligament
3) Interclavicular Ligament
4) Costoclavicular Ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

These ligaments help prevent medial displacement of the sternal end of the clavicle and excessive movement at the S-C joint.

A

Anterior/Posterior Sternoclavicular Ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

This ligament is located between the 2 sternal ends of the clavicle and prevents them from being pulled away from each other.

A

Interclavicular Ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A ligament located between the inferior clavicle and costal cartilage of the first rib. It restricts all movements at the S-C joint except for ________ glide.

A

Costoclavicular Ligament
Inferior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which 3 ligaments reinforce the S-C joint capsule?

A

1) Anterior Sternoclavicular Ligament
2) Posterior Sternoclavicular Ligament
3) Interclavicular Ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A joint where the acromial end of the clavicle articulates with the acromion of the scapula. Shoulder ___________ often occur at this joint caused by direct pressure to the outside of the shoulder.

A

Acromioclavicular (A-C) Joint
Separations

21
Q

What type of joint is the A-C joint?

A

Synovial Plane Joint

22
Q

What movements occur at the A-C joint?

A

1) Anterior/Posterior Glide
2) Mild Rotation

23
Q

What are the 3 ligaments of the A-C joint?

A

1) Acromioclavicular Ligament
2) Coracoacromial Ligament
3) Coracoclavicular Ligament

24
Q

A ligament that runs from the lateral end of the clavicle to the acromion and is an extension/thickening of the A-C joint capsule.

A

Acromioclavicular Ligament

25
Q

A ligament that runs from the coracoid process to the acromion and forms the ______________ arch, which is clinically relevant.

A

Coracoacromial Ligament
Coracoacromial

26
Q

A ligament that is made up of the trapezoid and conoid ligaments and runs from the coracoid process to the clavicle.

A

Coracoclavicular Ligament

27
Q

The glenoid fossa of the scapula articulates with the head of the humerus.

A

Glenohumeral (G-H) Joint

28
Q

What type of joint is the G-H joint?

A

Synovial Ball & Socket Joint

29
Q

What movements occur at the G-H joint?

A

1) Flexion/Extension
2) Abduction/Adduction
3) Horizontal Abduction/Horizontal Adduction
4) Internal Rotation/External Rotation
5) Circumduction
6) Scaption

30
Q

A fibrocartilagenous ring that attaches to the glenoid fossa and serves to deepen the joint in order to create a more stable articulation.

A

Glenoid Labrum

31
Q

A thin and loose structure surrounding the G-H joint.

A

Joint Capsule

32
Q

What are the 2 weak points of the G-H joint capsule?

A

1) Axillary Recess
2) Foramen of Weitbrecht

33
Q

The axillary recess is the weakest ________ point of the G-H joint capsule. The foramen of Weitbrecht is the weakest ________ point of the G-H joint capsule.

A

Inferior
Anterior

34
Q

What are the 2 ligaments of the G-H joint?

A

1) Coracohumeral Ligament
2) Glenohumeral (Capsular) Ligaments

35
Q

A ligament that runs from the coracoid process to the greater tubercle of the humerus.

A

Coracohumeral Ligament

36
Q

Extensions of the G-H joint capsule that attempt to stabilize it.

A

Glenohumeral (Capsular) Ligaments

37
Q

What are the 2 bursa associated with the G-H joint?

A

1) Subacromial Bursa
2) Subdeltoid Bursa

38
Q

A bursa located between the acromion and the G-H joint capsule.

A

Subacromial Bursa

39
Q

A bursa located between the deltoid muscle and the G-H joint capsule.

A

Subdeltoid Bursa

40
Q

A movement that occurs halfway between flexion and abduction, or between the sagittal and frontal planes. The scapula sits at an angle of approximately ___ degrees.

A

Scaption
45 degrees

41
Q

In scaption, there is less _______ on the capsule and greater _________ is possible than with pure frontal or sagittal plane.

A

Tension
Elevation

42
Q

T/F - You still need internal and external rotation of the humerus to prevent impingement with scaption.

A

False - NEITHER internal NOR external rotation of the humerus IS NEEDED to prevent impingement with scaption.

43
Q

Abduction of the arm involves movement at which 4 joints?

A

1) Scapulothoracic (S-T) Joint
2) Sternoclavicular (S-C) Joint
3) Acromioclavicular (A-C) Joint
4) Glenohumeral (G-H) Joint

44
Q

During normal abduction range, there is a specific relationship in the amount of movement at the G-H joint compared to the S-T articulation.

A

Scapulohumeral Rhythm

45
Q

There is no movement of the scapula from __ to ___ degrees of normal abduction.

A

0-15 degrees

46
Q

From 15-120 degrees of abduction, there is a __:__ ratio, favouring the G-H joint over the S-T joint.

A

2:1

47
Q

From 120-180 degrees of abduction, there is a __:__ ratio between movement of the G-H joint and S-T joint.

A

1:1

48
Q

During abduction of the humerus, the humerus must undergo ________ rotation, which usually happens around ___ degrees. This helps the greater tubercle clear the ______________ arch.

A

External
90 degrees
Coracoacromial

T1 ANATOMY (31 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions