Muscles- upper body p.54 & 55

Question 1

pectoralis major p.54

O-2
I-1
F-2

Answer 1

O-anterior surface, proximal end of clavicle
-anterior surface of sternum

I-bicipital groove of humerus (superior and lateral)

F- flexion and adduction of shoulder
-medial rotation of arm

Question 2

teres major p.54

O-1
I-1
F-

Answer 2

O-inferior angle of posterior surface of scapula

I-lesser tubercle of humerus

F-adducts, extends, medially rotates humerus

Question 3

latissimus dorsi

O-4
I-1
F-2

Answer 3

O- spine T7-L5
-posterior surface of sacrum
-crest of ilium
-lower 3 ribs

I-bicipital groove of humerus

F-extension/hyper and adduction of humerus
-medial rotation of arm

Question 4

deltoid

O-3
I-1
F-3

Answer 4

O- anterior border of lateral clavicle
-superior surface of acromion
-posterior lower border of scapular spine

I-deltoid tuberosity of humerus

F-flexion & medial rotation of humerus
-adduction of humerus
-extension and lateral rotation of humerus

Question 5

biceps brachii

O-2
I-2
F-3

Answer 5

O-coracoid process of scapula
-supraglenoid tubercle of scapula

I-radial tuberosity of radius
-proximal ulnar aponeurosis

F- flexion of elbow
-flexion of shoulder
-supination of forearm

Question 6

brachialis

O-1
I-1
F-1

Answer 6

O-distal 1/2 of anterior aspect of humerus

I-coranoid process of ulna

F-flexion of elbow