All the muscles are used to abduct the shoulder except -

MCQs PG Medical Entrance Mock Tests
#1

All the muscles are used to abduct the shoulder except -

1.Deltoid
2.Supraspinatus
3.Serratus anterior
4.Pectoralis major

exp:

Muscles responsible for abduction of the shoulder joint

  •    Supraspinatus- first 15 degrees of abduction

  •    Deltoid (Acromial fibers)- it is responsible for abduction from 15 to 90 degrees.

  •    Trapezius and serratus anterior- They are responsible for upward rotation of the glenoid cavity.