The trapezius muscle has three main functions. Name two of them.

Elevate the scapula, extend the neck, and retract the scapula (any two).

What is the primary function of both the infraspinatus and teres minor muscles?

Laterally rotate (or externally rotate) the shoulder joint.

They work together to perform the same actions: extension, adduction, and medial rotation of the arm at the shoulder joint.

Supraspinatus, infraspinatus, teres minor, and subscapularis

Grade 11th Grade · Physical Education · 45 min

I can identify the location and function of the posterior major muscles.

Ninja Nerd · 10:39

Muscles of the Back | Anatomy Model

3 key concepts

1
The trapezius muscle has three main functions: to elevate the scapula, extend the neck, and retract the scapula.
2
The infraspinatus and teres minor muscles both laterally rotate or externally rotate at the shoulder joint, making them synergists.
3
The erector spinae muscles, including the spinalis, longissimus, and iliocostalis, extend the vertebral column and neck.

7 questions · Multiple choice & Short answer

Quick comprehension check

“Name the three functions of the teres major muscle and its location.”

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