Podcast
Questions and Answers
Which of the following actions at the glenohumeral joint is primarily driven by the supraspinatus muscle?
Which of the following actions at the glenohumeral joint is primarily driven by the supraspinatus muscle?
- Shoulder external rotation
- Shoulder adduction
- Shoulder abduction (correct)
- Shoulder internal rotation
During which phase of a bicep curl is the biceps brachii undergoing concentric contraction?
During which phase of a bicep curl is the biceps brachii undergoing concentric contraction?
- Neither phase involves concentric contraction
- The lowering phase (returning to starting position)
- The isometric hold at the peak of the curl
- The lifting phase (curling the weight upwards) (correct)
If a patient is experiencing pain and limited movement in wrist flexion, which anatomical structure is MOST likely involved?
If a patient is experiencing pain and limited movement in wrist flexion, which anatomical structure is MOST likely involved?
- Lateral epicondyle of the humerus
- Olecranon process of the ulna
- Medial epicondyle of the humerus (correct)
- Styloid process of the radius
What movement at the shoulder girdle accompanies abduction at the glenohumeral joint?
What movement at the shoulder girdle accompanies abduction at the glenohumeral joint?
Which of the following actions would be MOST limited by damage to the infraspinatus and teres minor muscles?
Which of the following actions would be MOST limited by damage to the infraspinatus and teres minor muscles?
A gymnast performing a handstand relies heavily on wrist extension. Where do most of the muscles responsible for this action originate?
A gymnast performing a handstand relies heavily on wrist extension. Where do most of the muscles responsible for this action originate?
When an individual is reaching forward to grab an object (horizontal adduction), which shoulder girdle movement is MOST directly associated?
When an individual is reaching forward to grab an object (horizontal adduction), which shoulder girdle movement is MOST directly associated?
What two forearm movements occur at the radioulnar joint?
What two forearm movements occur at the radioulnar joint?
Which muscle is responsible for scapular adduction, elevation, and downward rotation?
Which muscle is responsible for scapular adduction, elevation, and downward rotation?
If a patient is having difficulty performing forearm pronation, which muscle is MOST likely to be involved?
If a patient is having difficulty performing forearm pronation, which muscle is MOST likely to be involved?
Which of the following muscles inserts on the intertubercular groove of the humerus?
Which of the following muscles inserts on the intertubercular groove of the humerus?
A gymnast performing a handstand relies heavily on scapular upward rotation and abduction. Which muscle is MOST responsible for these movements?
A gymnast performing a handstand relies heavily on scapular upward rotation and abduction. Which muscle is MOST responsible for these movements?
During a tennis serve, the arm is rapidly extended and internally rotated. Which muscle is NOT a primary mover in this action?
During a tennis serve, the arm is rapidly extended and internally rotated. Which muscle is NOT a primary mover in this action?
A weightlifter is performing a bicep curl. While the biceps brachii is the primary mover, which muscle assists in elbow flexion?
A weightlifter is performing a bicep curl. While the biceps brachii is the primary mover, which muscle assists in elbow flexion?
Which muscle originating on the medial epicondyle of the humerus contributes to both wrist flexion and radial deviation?
Which muscle originating on the medial epicondyle of the humerus contributes to both wrist flexion and radial deviation?
A patient presents with weakness in finger extension. Which muscle is MOST likely affected?
A patient presents with weakness in finger extension. Which muscle is MOST likely affected?
During a shoulder abduction exercise, after the initial degrees of movement, which muscle is MOST directly responsible for continuing the abduction?
During a shoulder abduction exercise, after the initial degrees of movement, which muscle is MOST directly responsible for continuing the abduction?
A person is performing a pull-up, which involves glenohumeral adduction, extension, and internal rotation. Which muscle is MOST directly involved in all three of these actions?
A person is performing a pull-up, which involves glenohumeral adduction, extension, and internal rotation. Which muscle is MOST directly involved in all three of these actions?
During a throwing motion, which muscle(s) would be MOST responsible for decelerating the arm after the ball is released?
During a throwing motion, which muscle(s) would be MOST responsible for decelerating the arm after the ball is released?
A patient is experiencing difficulty reaching overhead. Limited scapular upward rotation is observed. Which muscle is LEAST likely contributing to this limitation?
A patient is experiencing difficulty reaching overhead. Limited scapular upward rotation is observed. Which muscle is LEAST likely contributing to this limitation?
An individual is performing a push-up. Which muscle is responsible for scapular protraction at the top of the movement?
An individual is performing a push-up. Which muscle is responsible for scapular protraction at the top of the movement?
A patient reports pain during wrist flexion and radial deviation. Which muscle is MOST likely involved?
A patient reports pain during wrist flexion and radial deviation. Which muscle is MOST likely involved?
Which combination of glenohumeral and shoulder girdle movements occurs during the lowering (eccentric) phase of a lateral raise (shoulder abduction)?
Which combination of glenohumeral and shoulder girdle movements occurs during the lowering (eccentric) phase of a lateral raise (shoulder abduction)?
Which muscle inserts on the medial border of the scapula and performs adduction?
Which muscle inserts on the medial border of the scapula and performs adduction?
An individual is experiencing weakness in internal rotation of the glenohumeral joint. Which muscle is MOST likely affected?
An individual is experiencing weakness in internal rotation of the glenohumeral joint. Which muscle is MOST likely affected?
A construction worker is hammering nails repetitively. Which of the following muscles is MOST responsible for the forearm pronation involved in this action?
A construction worker is hammering nails repetitively. Which of the following muscles is MOST responsible for the forearm pronation involved in this action?
If a patient has limited supination but normal elbow flexion strength, which muscle is MOST likely affected?
If a patient has limited supination but normal elbow flexion strength, which muscle is MOST likely affected?
Which muscle helps flex the elbow and is also active during both pronation and supination?
Which muscle helps flex the elbow and is also active during both pronation and supination?
Flashcards
Scapular Stabilizers
Scapular Stabilizers
Stabilize the scapula for efficient arm movement.
Glenohumeral Movers
Glenohumeral Movers
Motion depends on scapular positioning
Elbow Joint
Elbow Joint
Hinge joint allowing flexion/extension.
Radioulnar Joint
Radioulnar Joint
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Most Movable Forearm Bone
Most Movable Forearm Bone
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Carpal Tunnel
Carpal Tunnel
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Bones Forming Wrist Joint
Bones Forming Wrist Joint
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Concentric Phase
Concentric Phase
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Rhomboids Action
Rhomboids Action
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Serratus Anterior Action
Serratus Anterior Action
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Pectoralis Minor Action
Pectoralis Minor Action
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Supraspinatus Action
Supraspinatus Action
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Latissimus Dorsi Action
Latissimus Dorsi Action
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Pectoralis Major Action
Pectoralis Major Action
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Coracobrachialis Action
Coracobrachialis Action
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Subscapularis Action
Subscapularis Action
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Brachialis Action
Brachialis Action
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Brachioradialis Action
Brachioradialis Action
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Rhomboids Origin/Insertion
Rhomboids Origin/Insertion
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Serratus Anterior Origin/Insertion
Serratus Anterior Origin/Insertion
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Pectoralis Minor Origin/Insertion
Pectoralis Minor Origin/Insertion
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Supraspinatus Origin/Insertion
Supraspinatus Origin/Insertion
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Latissimus dorsi Origin/Insertion
Latissimus dorsi Origin/Insertion
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Pectoralis Major Origin/Insertion
Pectoralis Major Origin/Insertion
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Coracobrachialis Origin/Insertion
Coracobrachialis Origin/Insertion
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Subscapularis Origin/Insertion
Subscapularis Origin/Insertion
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Brachialis Origin/Insertion
Brachialis Origin/Insertion
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Eccentric Phase
Eccentric Phase
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Study Notes
Scapular Movers
- Scapular movements are identifiable from slides.
Shoulder Joint vs. Shoulder Girdle Movements
- Abduction of the shoulder results in upward rotation of the shoulder girdle.
- Adduction of the shoulder results in downward rotation of the shoulder girdle.
- Flexion of the shoulder results in upward rotation of the shoulder girdle.
- Extension of the shoulder results in downward rotation of the shoulder girdle.
- Horizontal abduction results in retraction of the shoulder girdle.
- Horizontal adduction results in protraction of the shoulder girdle.
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Description
Study guide covering scapular movers like Rhomboids, Serratus Anterior, and Pectoralis Minor, detailing their origins, insertions, and actions. Also covers glenohumeral movers and their functions related to shoulder joint movement.
