Anatomy and Functions of the Glenohumeral Joint [Part 1]

The video tutorial explores the shoulder joint, also known as the glenohumeral joint, highlighting its structure as a ball and socket synovial joint. It compares the shoulder's high mobility and low stability to the hip joint's high stability and low mobility. The role of the glenoid labrum in enhancing joint stability is discussed, along with the anatomy of the humerus and associated ligaments. The video also examines the frontal section of the glenohumeral joint and the ligaments that contribute to its stability.

What type of joint is the glenohumeral joint?

• Hinge joint

• Ball and socket synovial joint

• Pivot joint

• Saddle joint

Which joint sacrifices stability for mobility?

• Elbow joint

• Glenohumeral joint

• Knee joint

• Hip joint

What is the main difference between the glenohumeral joint and the hip joint?

• The glenohumeral joint is more stable

• The hip joint is more mobile

• The glenohumeral joint is more mobile

• Both joints have the same stability

What is the primary function of the glenoid labrum?

• To increase the depth of the glenoid cavity

• To reduce the size of the humeral head

• To connect the humerus to the clavicle

• To provide blood supply to the shoulder

Which tendon passes through the intertubercular groove?

• Tendon of the deltoid

• Tendon of the triceps brachii

• Tendon of the long head of the biceps brachii

• Tendon of the pectoralis major

What is the role of the auxiliary pouch in the shoulder joint?

• To provide additional stability

• To allow for increased range of motion

• To reduce friction in the joint

• To connect the humerus to the scapula

What is the function of the transverse humeral ligament?

• To hold the biceps tendon in place

• To stabilize the AC joint

• To connect the clavicle to the scapula

• To increase the depth of the glenoid cavity

What is the function of the coracoacromial arch?

• To provide a passage for nerves

• To connect the clavicle to the scapula

• To limit upward translation of the humerus

• To stabilize the AC joint

Which ligament is part of the rotator interval?

• Conoid ligament

• Trapezoid ligament

• Coracohumeral ligament

• Acromioclavicular ligament

Which ligament completes the coracoacromial arch?

• Coracoacromial ligament

• Glenoid labrum

• Acromioclavicular ligament

• Coracohumeral ligament