Podcast
Questions and Answers
What type of joint is the Scapulothoracic joint?
What type of joint is the Scapulothoracic joint?
- Cartilaginous joint
- Fibrous joint
- Synovial joint
- Physiological joint (correct)
Which joint provides a moveable base for the humerus, increasing the range of motion at the shoulder joint?
Which joint provides a moveable base for the humerus, increasing the range of motion at the shoulder joint?
- Acromioclavicular joint
- Sternoclavicular joint
- Shoulder joint
- Scapulothoracic joint (correct)
Which movement of Scapula involves abduction away from the midline of the spine?
Which movement of Scapula involves abduction away from the midline of the spine?
- Retraction
- Protraction (correct)
- Elevation
- Depression
What role does the Scapulothoracic joint play in overhead work?
What role does the Scapulothoracic joint play in overhead work?
What type of movement involves upward sliding on the ribcage, such as shrugging the shoulders?
What type of movement involves upward sliding on the ribcage, such as shrugging the shoulders?
Which of the following shoulder movements would cause the scapula to rotate upwards?
Which of the following shoulder movements would cause the scapula to rotate upwards?
In upward rotation of the scapula, what happens to the glenoid cavity?
In upward rotation of the scapula, what happens to the glenoid cavity?
The sternoclavicular joint is a...
The sternoclavicular joint is a...
How many degrees of freedom does the SC joint have (sternoclavicular joint)?
How many degrees of freedom does the SC joint have (sternoclavicular joint)?
Which joint provides the moveable base for the humerus and helps absorb shocks to outstretched arms?
Which joint provides the moveable base for the humerus and helps absorb shocks to outstretched arms?
Which joint allows downward rotation with concave and convex articular surfaces?
Which joint allows downward rotation with concave and convex articular surfaces?
Which joint is described as a planar synovial joint with subtle movement?
Which joint is described as a planar synovial joint with subtle movement?
Which ligament of the SC joint prevents the clavicle from moving superiorly?
Which ligament of the SC joint prevents the clavicle from moving superiorly?
Which structure deepens the glenoid cavity to make articular surfaces congruent?
Which structure deepens the glenoid cavity to make articular surfaces congruent?
Which ligament of the SC joint is considered extrinsic?
Which ligament of the SC joint is considered extrinsic?
Which movement of the SC joint has the largest ROM?
Which movement of the SC joint has the largest ROM?
Which ligaments prevents superior dislocation of AC (acromioclavicular) joint?
Which ligaments prevents superior dislocation of AC (acromioclavicular) joint?
Which bursa facilitates movements of the supraspinatus tendon?
Which bursa facilitates movements of the supraspinatus tendon?
Which joint movements include elevation, depression, protraction, retraction, and rotation of the clavicle?
Which joint movements include elevation, depression, protraction, retraction, and rotation of the clavicle?
Which of these ligaments wraps around the tendon of the long head of biceps?
Which of these ligaments wraps around the tendon of the long head of biceps?
What is the range of horizontal adduction at the shoulder joint?
What is the range of horizontal adduction at the shoulder joint?
In which axis does rotation of the shoulder joint occur?
In which axis does rotation of the shoulder joint occur?
What is the range of flexion at the shoulder joint?
What is the range of flexion at the shoulder joint?
The final position of flexion can be reached by how many degrees of abduction?
The final position of flexion can be reached by how many degrees of abduction?
What muscles are involved in horizontal abduction at the shoulder joint?
What muscles are involved in horizontal abduction at the shoulder joint?
What is the position of reference for measuring the range of transverse movements of the shoulder joint?
What is the position of reference for measuring the range of transverse movements of the shoulder joint?
At what degree does lateral rotation occur at the shoulder joint?
At what degree does lateral rotation occur at the shoulder joint?
What is the range of horizontal abduction at the shoulder joint?
What is the range of horizontal abduction at the shoulder joint?
At what degree does medial rotation occur at the shoulder joint?
At what degree does medial rotation occur at the shoulder joint?
What is the position of the forearm to measure the range of movements of rotation at the shoulder joint?
What is the position of the forearm to measure the range of movements of rotation at the shoulder joint?
The articular surfaces of the GH joint are covered by ______ cartilage. (what type of cartilage?)
The articular surfaces of the GH joint are covered by ______ cartilage. (what type of cartilage?)
The head of the humerus has great congruency with the glenoid fossa
The head of the humerus has great congruency with the glenoid fossa
Glenoid labrum is composed of fibrocartilage that attach to the margins of the glenoid cavity
Glenoid labrum is composed of fibrocartilage that attach to the margins of the glenoid cavity
Short head of biceps is involved in horizontal adduction
Short head of biceps is involved in horizontal adduction
Bursae serve to decrease ______ between muscle and joint capsule
Bursae serve to decrease ______ between muscle and joint capsule
Coracohumeral ligament connects the coracoid process to the......
Coracohumeral ligament connects the coracoid process to the......
The coracohumeral ligament serves to keep the biceps tendon in its groove during any GH movement
The coracohumeral ligament serves to keep the biceps tendon in its groove during any GH movement
What direction are shoulder dislocations most common in?
What direction are shoulder dislocations most common in?
Which nerve is most likely to be damaged with shoulder dislocation?
Which nerve is most likely to be damaged with shoulder dislocation?
Which of these ligaments supports the GH joint anteriorly?
Which of these ligaments supports the GH joint anteriorly?
Which of these ligaments supports the GH superiorly?
Which of these ligaments supports the GH superiorly?
The GH is supported posteriorly by the ______ muscles
The GH is supported posteriorly by the ______ muscles
Study Notes
Shoulder Joint Anatomy and Physiology
- Sternoclavicular joint allows downward rotation, with concave and convex articular surfaces
- Supportive ligaments include sternoclavicular, interclavicular, and costoclavicular ligaments
- Joint movements include elevation, depression, protraction, retraction, and rotation of the clavicle
- Acromioclavicular joint is a planar synovial joint with subtle movement
- Ligaments of the AC joint include acromioclavicular, trapezoid, and conoid ligaments
- Glenohumeral joint is a ball and socket synovial joint with three degrees of freedom
- Glenoid labrum deepens the glenoid cavity to make articular surfaces congruent
- GH joint capsule attaches to the glenoid cavity and anatomical neck of humerus
- GH joint ligaments include capsular, transverse humeral, and coracohumeral ligaments
- Coracoacromial arch is formed by the smooth inferior aspect of the acromion and coracoid processes
- Rotator cuff muscles are fused to the joint capsule, except for the biceps
- Bursae around the GH joint, including subscapular, subacromial, and subdeltoid bursae, protect underlying tendons and muscles
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Description
Test your knowledge of shoulder joint anatomy and physiology with this quiz! Explore the intricate details of sternoclavicular, acromioclavicular, and glenohumeral joints, along with ligaments, movements, and supportive structures.
