Which muscle has origin including the nuchal ligament, spinous processes C7-T12, and occipital protuberance?

Which muscle has origin including the nuchal ligament, spinous processes C7-T12, and occipital protuberance?

• A. Trapezius
• B. Latissimus dorsi
• C. Levator scapulae
• D. Rhomboid minor

Answer: (A)

The main idea tested is where a muscle begins (its origins) and how that placement relates to its function. The muscle described starts at the skull and upper neck and runs down the spine to the mid back, reflecting a broad anchor along the back of the neck and torso. This muscle has its origins at the external occipital protuberance and along the superior nuchal line via the nuchal ligament, and it also originates from the spinous processes of the vertebrae from C7 down to T12. That exact combination ofAttachments—occipital bone region at the top, the nuchal ligament, and the long span of spinous processes down to the mid-thorse back—fits the trapezius. The other muscles don’t share this same origin pattern. The latissimus dorsi starts lower down, from the iliac crest and thoracolumbar fascia and lower thoracic to lumbar spinous processes, not from the occipital region. The levator scapulae originates around the upper cervical transverse processes (C1–C4). The rhomboid minor comes from the nuchal ligament and the spinous processes of C7–T1, but not from the full C7–T12 range or the occipital area.

The main idea tested is where a muscle begins (its origins) and how that placement relates to its function. The muscle described starts at the skull and upper neck and runs down the spine to the mid back, reflecting a broad anchor along the back of the neck and torso.

This muscle has its origins at the external occipital protuberance and along the superior nuchal line via the nuchal ligament, and it also originates from the spinous processes of the vertebrae from C7 down to T12. That exact combination ofAttachments—occipital bone region at the top, the nuchal ligament, and the long span of spinous processes down to the mid-thorse back—fits the trapezius.

The other muscles don’t share this same origin pattern. The latissimus dorsi starts lower down, from the iliac crest and thoracolumbar fascia and lower thoracic to lumbar spinous processes, not from the occipital region. The levator scapulae originates around the upper cervical transverse processes (C1–C4). The rhomboid minor comes from the nuchal ligament and the spinous processes of C7–T1, but not from the full C7–T12 range or the occipital area.