What type of joint is the acromioclavicular joint?

• Hinge joint

• Synovial, planar joint

• Fibrous joint

• Cartilaginous joint

Which structures articulate at the acromioclavicular joint?

• Medial end of clavicle and 1st rib

• Head of humerus and glenoid fossa

• Acromion of the scapula and the lateral end of the clavicle

• Sternum and medial end of the clavicle

What is the primary movement allowed at the acromioclavicular joint?

• Abduction and adduction

• Circumduction

• Flexion and extension

• Limited gliding and rotation

Which ligament provides direct support to the acromioclavicular joint?

• Acromioclavicular Ligament

• Capsular Ligament

• Coracoclavicular Ligament

• Rotator Cuff Ligament

What is the role of the coracoclavicular ligament?

• Facilitates flexion

• Stabilizes vertical displacement

• Limits rotation

• Provides direct support

What condition occurs when ligaments in the acromioclavicular joint are damaged?

• AC Joint Sprain

• Muscle tear

• Tendinitis

• Bursitis

What is a common cause of osteoarthritis in the acromioclavicular joint?

• Genetic predisposition

• Capsular infection

• Trauma and allergy

• Repetitive stress and overuse

What functional significance does the acromioclavicular joint provide?

• Initiate shoulder forward reaching activity

• Facilitates overhead movement of shoulder

• Improves stability of shoulder joint

• Enables a wide range of shoulder movements

Which ligament is NOT associated with the acromioclavicular joint?

• Scapulothoracic Ligament

• Capsular Ligament

• Acromioclavicular Ligament

• Coracoclavicular Ligament

What type of movement is primarily associated with the acromioclavicular joint during overhead activities?

• Shoulder elevation

• Scapula retraction

• Shoulder extension

• Scapula protraction