Girdle
Positioners
Positioners
The posterior thoracic muscle used to shrug your shoulders or tilt your head back.
What is the trapezius?
The thick, fan-shaped chest muscle covering the superior anterior thorax.
What is the pectoralis major?
The thick, rounded shoulder muscle that acts as the prime abductor of the arm.
What is the deltoid?
The muscle action described in the text as delivering an "uppercut punch"
What is pectoralis major contraction (or flexion/adduction/medial rotation)?
The total number of deep muscles whose tendons form the rotator cuff.
What is four?
The small muscle originating on the first rib that depresses and stabilizes the clavicle.
What is the subclavius?
The broad, triangular lower-back muscle that inserts into an aponeurosis.
What is the latissimus dorsi?
The muscle originating in the fossa superior to the spine of the scapula that abducts the arm.
What is the supraspinatus?
The muscle you contract when "elbowing someone standing behind you"
What is the latissimus dorsi?
The athlete group specifically named in the text as prone to rotator cuff tears.
What are baseball pitchers?
The anterior muscle inserting on the coracoid process that rotates the shoulder in a throw.
What is the pectoralis minor?
The shared bony insertion groove on the humerus for the latissimus dorsi and teres major.
What is the intertubercular sulcus?
The muscle in the subscapular fossa that medially rotates the humerus.
What is the subscapularis?
The outward arm motion during a tennis swing powered by the infraspinatus and supraspinatus.
What is abduction or lateral rotation (or rotating the elbow outwards)?
The specific joint that the rotator cuff tendons encircle to stabilize.
What is the shoulder joint (or glenohumeral joint)?
The "boxer's" muscle originating on ribs 1–8/9 that protracts the scapula forward.
What is the serratus anterior?
The broad connective tissue sheet on the lower back that serves as an attachment for the latissimus dorsi.
What is an aponeurosis?
The muscle originating on the coracoid process that flexes and adducts the arm
What is the coracobrachialis?
The action of putting your hand on your chest, which moves the elbow up and across the body.
What is flexion and adduction (performed by the coracobrachialis)?
The only rotator cuff muscle that inserts onto the lesser tubercle of the humerus.
What is the subscapularis?
The two posterior muscles that retract the scapula medially toward the spine.
What are the rhomboids (or rhomboid major and rhomboid minor)?
The common insertion point on the humerus for the pectoralis major and three rotator cuff muscles.
What is the greater tubercle (of the humerus)?
The muscle inferior to teres minor that extends, adducts, and medially rotates the humerus.
What is the teres major?
The dual action of elevating ribs during inhalation performed by pectoralis minor and serratus anterior.
What is assisting with inhalation (or breathing)?
The specific repetitive movement mechanism that causes rotator cuff pinching and tearing.
What is bringing the arm overhead to throw a fast pitch?