FREE ANATOMY AND STUDY GAMES ABOUT

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FREE ANATOMY AND STUDY GAMES ABOUT

SHOULDER/ARM MUSCLES EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -15 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Pectoralis Major

Answer:

Origin: clavicle, sternum, cartilages of ribs 1-7; Insertion: crest of greater tubercle of humerus; Action: flexes, adducts, and medially rotates arm

Question 2: Latissimus Dorsi

Answer:

Origin: T7-12, L1-5, S1-5, crest of ilium, ribs 10-12; Insertion: intertubercular groove of humerus; Action: extends, adducts, and medially rotates arm, draws shoulder inferiorly

Question 3: Trapezius

Answer:

Origin: posterior occipital bone, igentum nuchae, C7-T12; Insertion: clavicle, acromion, and spine of scapula; Action: extends and abducts head, rotates and adducts scapula, fixes scapula

Question 4: Teres Major

Answer:

Origin: inferior angle of scapula; Insertion: crest of lesser tubercle of humerus; Action: extends, adducts, and medially rotates arm

Question 5: Brachioradialis

Answer:

Origin: lateral supracondylar ridge of humerus; Insertion: styloid process of radius; Action: flexes forearm

Question 6: Biceps Brachii

Answer:

Origin: long head: superior margin of glenoid cavity, short head: coracoid process of scapula; Insertion:

radial tuberosity; Action: flexes arm, flexes forearm, supinates hand

Question 7: Triceps Brachii

Answer:

Origin: infraglenoid tuberosity of scapula, lateral and posterior surface of humerus; Insertion: olranon

process, tuberosity of ulna; Action: extends and adducts arm, extends forearm

Question 8: Deltoid

Answer:

Origin: clavicle, acromion, spine of scapula; Insertion: deltoid tuberosity of the humerus; Action: abducts arm, flexes, extends, medially, and laterally rotates arm

Question 9: Subscapularis

Answer:

Origin: subscapular fossa; Insertion: lesser tubercle of humerus; Action: medially rotates arm, stabilizes shoulder joint

Question 10: Pectoralis Minor

Answer:

Origin: ribs 3-5; Insertion: coracoid process of scapula; Action: depresses glenoid cavity, raises ribs 3-5

Question 11: Infraspinatus

Answer:

Origin: infraspinous fossa; Insertion: greater tubercle of humerus; Action: laterally rotates arm, stabilize shoulder joint

Question 12: Coracobrachialis

Answer:

Origin: coracoid process of scapula; Insertion: midmedial shaft of humerus; Action: flexes and adducts arm

Question 13: Supraspinatus

Answer:

Origin: suprapinous fossa; Insertion: greater tubercle of humerus; Action: abducts arm, helps stabilize shoulder joint

Question 14: Brachialis

Answer:

Origin: anterior, distal surface of humerus; Insertion: coronoid process of ulna; Action: flexes forearm

Question 15: Teres Minor

Answer:

Origin: lateral border of scapula; Insertion: greater tubercle of humerus; Action: laterally rotates and adducts arm, stabilizes shoulder joint