Movements of the Humerus

Question 1

Pectoralis Minor

Answer 1

3-5 Ribs > Coracoid process of ScapulaFixed Ribs: Scapula Forward and InferiorFixed Scapula: Elevate Rib Cage (Respiratory Accessory)

Question 2

Serratus Anterior

Answer 2

1-8 Ribs > Scapula (Anterior Surface of medial Border)Rotates or Protracts Scapula

Question 3

Trapezius Muscles

Answer 3

Occipital Bone, Spinous processes of C7 + all Thoracic Vertebrae > Acromion and Spine of Scapula, Lateral 1/3 of clavicle

Question 4

Rhomboids Major/ Minor

Answer 4

Spinous Processes of Vertebrae (C7-T1 minor, T2-T4 Major) > Medial Border of ScapulaExtend Head, Elevate, Retracts, Rotates Scapula

Question 5

Levator Scapulae

Answer 5

Transverse Processes of C1-C4 > Medial Border of Scapula + Superior to SpineElevates + Adducts Scapula

Question 6

Pectoralis Major

Answer 6

Sternal End of Clavical, Sternum, Ribs 1-6 > Intertubercular Sulcus/Greater Tubercle of HumerusPrime Mover of arm flexion, Medial Arm Rotation, Arm Adduction

Question 7

Deltoids

Answer 7

Lateral Third of Clavical + Acromion and Spine of Scapula > Deltoid Tuberosity of HumerusAbduction of the Shoulder

Question 8

Latissimus Dorsi Muscles

Answer 8

Spine of lower 6 thoracic Vertebrae, Lower 3-4 Ribs, Iliac Crest > Intertubercular sulcus of HumerusAgonist for shoulder extension, Arm adductor, Medially rotates arm at shoulder

Question 9

Subscapularis

Answer 9

Subscapular Fossa of Scapula > Lesser Tubercle of humerus Chief Medial Rotator of Humerus

Question 10

Supraspinatus Muscles

Answer 10

Supraspinatus Fossa of Scapula > Greater Tubercle of HumerusInitiate Humerus ABduction

Question 11

Infraspinatus Muscles

Answer 11

Infraspinatus Fossa of Scapula > Greater Tubercle of HumerusRotates Humerus Laterally

Question 12

Teres Minor

Answer 12

Lateral border of dorsal scapula surface > Greater Tubercle of HumerusRotates Humerus Laterally

Question 13

Teres Major

Answer 13

Posterior surface of scapula @ Inferior Angle > Lesser Tubercle of HumerusExtends, Medially rotates, adducts humerusLatissimus Dorsi synergist

Question 14

Coracobrachialis

Answer 14

Coracoid Process of Scapula > Medial Surface of Humerus ShaftFlexion and adduction of humerus