Shoulder to Shoulder
The primary action of the anterior deltoid.
What is flexion?
This muscle is a true elbow flexor.
What is the brachialis?
This large back muscle inserts at the intertubercular groove of the humerus.
What is the latissimus dorsi?
This boat-shaped carpal has the greatest articulation with the radius at the wrist.
What is the scaphoid or navicular bone?
This frequently overdeveloped glenohumeral muscle can be stretched by placing the shoulder in external rotation.
What is the pectoralis major?
The most superior of the rotator cuff muscles.
What is the supraspinatus?
This is the most commonly injured elbow ligament when throwing.
What is the ulnar collateral ligament?
This large muscle has origination from the base of the skull to the T12 vertebrae.
What is the trapezius?
Carpal tunnel syndrome can cause decreased function of this nerve.
What is the median nerve?
This shoulder girdle muscle can be strengthened by emphasizing the last 5-10 degrees of motion during a push-up exercise.
What is the serratus anterior?
This shoulder girdle muscle produces both pronation and upward rotation.
What is the serratus anterior?
This muscle can both pronate and supinate the radioulnar joint, depending on which position it is in.
What is the brachioradialis?
This bony landmark serves as the insertion of the serratus anterior.
What is the medial border of the scapula?
This muscle inserts via split tendons on the middle phalanx of the lesser four fingers.
What is the flexor digitorum superficialis?
This hand/forearm position decreases the effectiveness of the biceps brachii during when producing elbow flexion against resistance.
What is pronation?
This muscle only abducts the shoulder joint when it is above 90 degrees of abduction.
What is the pectoralis major?
This branch of the brachial plexus innervates the biceps brachii, brachialis, and coracobrachialis.
What is the musculocutaneous nerve?
This shoulder girdle muscle works in downward rotation by drawing the scapula toward the spine.
What are the rhomboids?
This muscle is able to extend the thumb at the carpometacarpal & metacarpophalangeal joints, but not the thumb's interphalangeal joint.
What is the extensor pollicis brevis?
A shoulder press exercise would require these motions at the shoulder girdle.
What are elevation and upward rotation?
These rotator cuff muscles are the prime movers in glenohumeral external rotation.
What are the infraspinatus and teres minor?
These are the two origins of the biceps brachii.
What are the coracoid process and the supraglenoid tubercle.
Injury to this nerve is a common cause of scapular winging.
What is the long thoracic nerve?
This anterior forearm muscle has dual-innervation from both the median and ulnar nerves.
What is the flexor digitorum profundus?
What are flexion of the elbow and shoulder?