Shoulder Flashcards
What are the main bones that form the shoulder joint?
The humerus and scapula.
True or False: The scapula is also known as the shoulder blade.
True.
Fill in the blank: The __________ connects the upper limb to the trunk.
clavicle.
Which muscle is primarily responsible for shoulder abduction?
Deltoid.
What is the function of the rotator cuff muscles?
To stabilize the shoulder joint.
Identify the four muscles that make up the rotator cuff.
Supraspinatus, Infraspinatus, Teres Minor, Subscapularis.
What is the anatomical term for the shoulder blade?
Scapula.
Which bony landmark is located at the top of the scapula?
Acromion.
True or False: The greater tubercle is a landmark found on the scapula.
False.
What is the role of the pectoralis major in shoulder movement?
It adducts and medially rotates the shoulder.
Multiple Choice: Which muscle is NOT part of the rotator cuff? A) Supraspinatus B) Teres Major C) Infraspinatus D) Subscapularis
B) Teres Major.
Fill in the blank: The __________ is a small, rounded projection on the humerus for muscle attachment.
lesser tubercle.
What is the primary action of the latissimus dorsi muscle?
Shoulder extension, adduction, and medial rotation.
True or False: The shoulder joint is classified as a hinge joint.
False.
What type of joint is the shoulder joint?
Ball-and-socket joint.
Which muscle is involved in shoulder flexion?
Pectoralis major.
Identify the landmark where the biceps brachii muscle attaches to the scapula.
Supraglenoid tubercle.
What is the main function of the trapezius muscle?
To elevate, retract, and rotate the scapula.
Fill in the blank: The __________ is a depression in the scapula that articulates with the head of the humerus.
glenoid cavity.
True or False: The subscapularis muscle is located on the anterior surface of the scapula.
True.
What is the primary action of the teres minor muscle?
Lateral rotation of the shoulder.
Multiple Choice: Which of the following muscles does NOT contribute to shoulder stability? A) Supraspinatus B) Biceps Brachii C) Infraspinatus D) Subscapularis
B) Biceps Brachii.
What is the role of the serratus anterior muscle?
To protract and stabilize the scapula.
Fill in the blank: The __________ is a fibrous structure that connects the humerus to the scapula.
shoulder capsule.
Which bony landmark is found at the distal end of the humerus?
Capitulum.
True or False: The coracoid process is part of the clavicle.
False.
What is the primary function of the deltoid muscle?
Shoulder abduction.
Identify the muscle that primarily performs shoulder adduction.
Latissimus dorsi.
Fill in the blank: The __________ is a large, triangular muscle that covers the upper back.
trapezius.
What is the role of the rhomboid muscles?
To retract the scapula.
True or False: The acromioclavicular joint connects the scapula to the humerus.
False.
What movement does the supraspinatus muscle assist with?
Initial abduction of the arm.
Multiple Choice: Which joint allows for the most movement in the body? A) Elbow B) Shoulder C) Hip D) Knee
B) Shoulder.
What is the primary action of the teres major muscle?
Medial rotation and adduction of the shoulder.
Fill in the blank: The __________ is the point where the clavicle meets the sternum.
sternoclavicular joint.
True or False: The shoulder joint has a high degree of mobility but is less stable than other joints.
True.
What is the function of the long head of the biceps brachii?
To assist in shoulder flexion and stabilization.
Identify the muscle that is primarily responsible for shoulder extension.
Latissimus dorsi.
Fill in the blank: The __________ is a small bony prominence on the scapula that serves as an attachment for ligaments.
coracoid process.
True or False: The subscapularis is responsible for lateral rotation of the shoulder.
False.
What is the main function of the deltoid’s anterior fibers?
Shoulder flexion and internal rotation.
Multiple Choice: Which muscle aids in upward rotation of the scapula? A) Pectoralis Minor B) Trapezius C) Rhomboids D) Latissimus Dorsi
B) Trapezius.
What is the effect of the infraspinatus muscle on shoulder movement?
Lateral rotation of the arm.
Fill in the blank: The __________ is a fibrocartilaginous structure that deepens the glenoid cavity.
glenoid labrum.
True or False: The shoulder girdle consists of the clavicle and the scapula.
True.
Identify the muscle that primarily performs shoulder medial rotation.
Subscapularis.
What is the primary action of the pectoralis minor?
Stabilizes the scapula by drawing it anteriorly and inferiorly.
Fill in the blank: The __________ joint allows for the greatest range of motion in the body.
shoulder.
True or False: The glenohumeral joint is stabilized by the rotator cuff muscles.
True.
What is the role of the levator scapulae muscle?
To elevate the scapula.
Multiple Choice: Which muscle is NOT involved in shoulder flexion? A) Anterior Deltoid B) Pectoralis Major C) Teres Minor D) Biceps Brachii
C) Teres Minor.
Fill in the blank: The __________ is a common site for shoulder injuries due to its mobility.
glenohumeral joint.
What is the main action of the coracobrachialis muscle?
Shoulder flexion and adduction.
True or False: The shoulder has two primary joints: the glenohumeral joint and the scapulothoracic joint.
True.
What is the primary function of the supraspinatus muscle?
To assist in the initial 15 degrees of shoulder abduction.
Identify the ligament that stabilizes the acromioclavicular joint.
Acromioclavicular ligament.
Fill in the blank: The __________ is a structure that connects muscles to bones.
tendon.
True or False: The subscapularis is located on the posterior side of the scapula.
False.
What is the primary action of the infraspinatus muscle?
Lateral rotation of the arm.
Multiple Choice: Which muscle is responsible for retracting the scapula? A) Serratus Anterior B) Rhomboids C) Trapezius D) All of the above
D) All of the above.
What is the function of the teres major muscle?
To assist in shoulder adduction and medial rotation.
Fill in the blank: The __________ is the site of attachment for the biceps brachii tendon.
supraglenoid tubercle.
True or False: The deltoid muscle is located on the anterior aspect of the shoulder.
True.
What is the role of the supraspinatus in shoulder movement?
To initiate abduction of the arm.
Identify the major artery supplying the shoulder region.
Subclavian artery.
Fill in the blank: The __________ helps maintain the stability of the shoulder joint.
rotator cuff.
