When exploring between the scapula, which muscle must you palpate through to access the erector fibers?

When exploring between the scapula, which muscle must you palpate through to access the erector fibers?

• A. Trapezius and rhomboids
• B. Latissimus dorsi and teres major
• C. Pectoralis minor and serratus anterior
• D. Deltoid and supraspinatus

Answer: (A)

When you’re exploring between the scapula to feel the deep erector spinae fibers, you must get through the superficial and deeper muscles that overlay that region. The trapezius sits on top of the upper back, covering a broad area, and beneath it lie the rhomboids between the scapula and the spine. To access the erector spinae along the vertebral column, these two muscle layers must be palpated through. The other options don’t overlay the area in the same way: latissimus dorsi and teres major are more lateral and lower back/side muscles; pectoralis minor and serratus anterior are on the front of the chest and scapula, not directly between the scapula and spine; deltoid and supraspinatus are shoulder muscles. So the muscles you go through are the trapezius and rhomboids.

When you’re exploring between the scapula to feel the deep erector spinae fibers, you must get through the superficial and deeper muscles that overlay that region. The trapezius sits on top of the upper back, covering a broad area, and beneath it lie the rhomboids between the scapula and the spine. To access the erector spinae along the vertebral column, these two muscle layers must be palpated through. The other options don’t overlay the area in the same way: latissimus dorsi and teres major are more lateral and lower back/side muscles; pectoralis minor and serratus anterior are on the front of the chest and scapula, not directly between the scapula and spine; deltoid and supraspinatus are shoulder muscles. So the muscles you go through are the trapezius and rhomboids.