Which muscle is located in the lower back?

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Multiple Choice

Which muscle is located in the lower back?

Explanation:
Latissimus dorsi is the broad back muscle that runs across the lower portion of the back. It originates from the lower thoracic and lumbar spine, the iliac crest, and the thoracolumbar fascia, then inserts on the humerus. This placement makes it a defining muscle of the lower back. The other muscles are located elsewhere: the biceps brachii is in the upper arm, the rectus abdominis is on the front of the abdomen, and the trapezius is mainly in the upper back and neck.

Latissimus dorsi is the broad back muscle that runs across the lower portion of the back. It originates from the lower thoracic and lumbar spine, the iliac crest, and the thoracolumbar fascia, then inserts on the humerus. This placement makes it a defining muscle of the lower back. The other muscles are located elsewhere: the biceps brachii is in the upper arm, the rectus abdominis is on the front of the abdomen, and the trapezius is mainly in the upper back and neck.

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