60 Questions
Which muscle initiates abduction of the shoulder joint?
Supraspinatus
Which structure prevents superior dislocation of the shoulder joint?
Coracoacromial Arch
Which muscle is responsible for medial rotation of the shoulder joint?
Subscapularis
Which tendon passes through the bicipital groove of the humerus?
Long Head of Biceps
Which muscle forms a cuff around the shoulder joint?
Rotator Cuff Muscles
Which nerve supplies the supraspinatus and infraspinatus muscles?
Suprascapular Nerve
Which artery supplies the shoulder region?
Axillary Artery
Which nerve supplies the deltoid and teres minor muscles?
Axillary Nerve
Which nerve innervates the cutaneous areas of the arm and forearm?
Medial Cutaneous Nerve of the Arm and Forearm
Which muscle is most commonly injured in rotator cuff injuries?
Supraspinatus
Which bone is part of the skeletal component of the shoulder region?
Clavicle
Which joint is present in the shoulder region?
Glenohumeral joint
What is the main function of the pectoral girdle?
Anchor the muscles in the shoulder region
Which anatomical structures are responsible for stabilizing the shoulder joint?
Glenoid fossa and humerus
What is the function of the muscles in the shoulder region?
Allow movement of the shoulder joint
What is the axilla?
The region where the brachial plexus branches
Which nerves are present in the shoulder region?
Suprascapular nerve and long thoracic nerve
What are the cords and terminal branches of the brachial plexus?
Medial, lateral, and posterior cords
Which bone is NOT part of the pectoral girdle?
Humerus
What is the function of the acromion in the shoulder region?
Facilitate movement of the shoulder joint
Which ligaments stabilize/support the shoulder region?
Coracoclavicular, Acromioclavicular, Coracoacromial, Glenohumeral
Which joint is highly mobile and considered a ball and socket joint?
Glenohumeral Joint
What is the main action of the middle fibers of the Deltoid muscle?
Abduction of the Glenohumeral Joint
What muscles perform adduction of the Glenohumeral Joint?
Latissimus Dorsi and Pectoralis Major
What is the main action of the Long Head of the Biceps muscle?
Flexion of the Glenohumeral Joint
What nerve supplies the Musculoskeletal nerve of the Coracobrachialis muscle?
Musculocutaneous Nerve
What structure increases the stability of the Glenohumeral Joint?
Deepening of Glenoid Fossa by Glenoid Labrum
What is the most frequently dislocated joint in the body?
Glenohumeral Joint
What factors increase the stability of the Shoulder Joint?
Coracoacromial Arch, Glenohumeral Ligaments, Deepening of Glenoid Fossa by Glenoid Labrum, Long Heads of Biceps and Triceps
What is the main action of the Lateral Head of the Triceps muscle?
Extension of the Glenohumeral Joint
Which bones make up the pectoral girdle in the shoulder region?
Clavicle and scapula
What is the main function of the acromion process in the shoulder region?
To protect the neurovascular structures in the shoulder region
Which anatomical structures are described as stabilizing the shoulder joint?
Ligaments of the shoulder region
Which structures are present in the shoulder region?
Arteries, veins, and nerves
Which nerve supplies the muscles responsible for rotating the scapula laterally?
Axillary nerve
Which muscle is responsible for flexion of the glenohumeral joint?
Biceps brachii
Which muscle is NOT involved in abduction of the glenohumeral joint?
Pectoralis major
Which muscle is responsible for medial rotation of the shoulder joint?
Subscapularis
What is the main action of the biceps muscle?
Flexion of the elbow joint
Which nerve supplies the triceps muscle?
Radial nerve
Which muscle is responsible for extension of the shoulder joint?
Triceps
What is the main function of the rotator cuff muscles?
Stabilization of the shoulder joint
What is the main function of the coracoid acromion ligament?
To provide support to the head of the humerus
Which ligament connects the coracoid process to the clavicle?
Coracoclavicular ligament
What is the main function of the glenohumeral ligaments?
To prevent superior dislocation of the shoulder joint
What is the main function of the acromion in the shoulder region?
To stabilize the entire shoulder complex
What is the main action of the middle fibers of the Deltoid muscle?
Shoulder abduction
Which muscle is responsible for medial rotation of the shoulder joint?
Biceps muscle
What is the function of the acromion in the shoulder region?
To provide attachment for muscles
Which joint is highly mobile and considered a ball and socket joint?
Glenohumeral joint
Which ligament forms an arch from an anterior view in the shoulder joint?
Collar core chromium ligament
Which structure helps to deepen the shallow glenoid fossa in the shoulder joint?
Glenoid Labrum
What is the function of the rotator cuff muscles in the shoulder joint?
To stabilize the glenohumeral joint
What is the role of the long head of the biceps muscle in the shoulder joint?
To hold the biceps tendon in place
What is the main function of the rotator cuff tendons?
To stabilize the joint
Which side of the joint is the most of the rotator cuff located?
Anterior side
What is the name of the tendon located just above the Pilaris tendon?
Super Spinoza's impersonators
What is the main function of the rotator cuff tendons besides stabilizing the joint?
To produce movement at the joint
Which side of the joint is the posterior side?
Posterior side
What is the name of the rotator cuff tendon located at the front of the joint?
Pilaris
Test your knowledge of the anatomy of the shoulder region with this quiz. Explore the main structures, movements, and stability of the shoulder joint. Identify the arterial, venous, and neural elements present in this area. Gain a deeper understanding of the pectoral girdle and the muscles involved in shoulder movement.
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