Question

Which muscle produces the same action (synergist) as the teres minor?

a infraspinatus
b latissimus dorsi
c trapezius
d teres major

Answer 1

The infraspinatus (Option a) muscle is the synergist muscle that produces the same action as the teres minor, both laterally rotating the arm.

Step-by-step explanation:

The muscle that produces the same action (synergist) as the teres minor is the infraspinatus. Both the teres minor and the infraspinatus muscles are part of the rotator cuff and serve to laterally rotate the arm. The infraspinatus muscle is located inferior to the spine of the scapula and aids in lateral rotation of the arm, similar to the teres minor which also laterally rotates and extends the arm.