Exploring Posterior Major Muscles
11th Grade · Physical Education · 45 min
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Learning Objective
I can identify the location and function of the posterior major muscles.
- 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.
