Q-9. All the Muscles are used to abduct the shoulder except:
a) Deltoid
b) Supra-spinatus
c) Serratus anterior
d) Pectoralis major
Answer- d
Explanation:
Pectoralis major: Actions
Acting as whole:
Adduction
Medial rotation of shoulder/arm
Clavicular part:
Flexion of the arm
Sterno-clavicular part:
Extension of flexed arm against resistance
Climbing