Glenohumeral Joint Anatomy and Function

The video tutorial provides an in-depth look at the glenohumeral joint, a synovial ball and socket joint between the humerus and scapula. It covers the joint's instability and mobility, the various movements it allows, and the muscles and ligaments that provide stability. The tutorial also explains the structure of the glenoid cavity, the role of the glenoid labrum, and the joint capsule. Additionally, it discusses the synovial membrane, bursa, and the ligaments that support the joint, concluding with a recap of the key points.

What type of joint is the glenohumeral joint?

• Hinge joint

• Ball and socket joint

• Saddle joint

• Pivot joint

Which of the following movements is NOT possible at the glenohumeral joint?

• Inversion

• Circumduction

• Extension

• Flexion

Which muscle is NOT involved in stabilizing the glenohumeral joint?

• Rotator cuff muscles

• Deltoid

• Pectoralis major

• Biceps femoris

What structure surrounds the glenoid cavity to add depth?

• Articular cartilage

• Glenoid labrum

• Synovial membrane

• Fibrous capsule

The long head of the biceps tendon is continuous with which structure?

• Subscapularis muscle

• Coracoid process

• Glenoid labrum

• Acromion process

What is the function of the synovial membrane in the glenohumeral joint?

• To form the joint capsule

• To attach muscles to bones

• To produce synovial fluid

• To provide structural support

Which bursa is located under the acromion process?

• Subacromial bursa

• Subscapularis bursa

• Prepatellar bursa

• Olecranon bursa

How many glenohumeral ligaments are there?

• Two

• Three

• Five

• Four

Which ligament attaches from the coracoid process to the humerus?

• Transverse humeral ligament

• Inferior glenohumeral ligament

• Superior glenohumeral ligament

• Coracohumeral ligament

What is the primary function of the rotator cuff muscles in the glenohumeral joint?

• To produce synovial fluid

• To stabilize the joint

• To provide mobility

• To attach ligaments