Latissimus Dorsi is reffered to as Lats. It is a flat broad muscle that connect from your medial upper arm to your spine and the iliac crest or the top bone of your hips. It is a V shape muscles which help protect and stabilize your spine while supporting your shoulder and and back. This is also responsible the movement of your shoulder and arms. When this is congested, your breathing can be affected because this muscle enhances the movement of your trunk during inhalation and exhalation.
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