Which of the following is a posterior thoracic surface landmark?

Which of the following is a posterior thoracic surface landmark?

• A. Suprasternal Notch
• B. Vertebra Prominens
• C. Sternal Angle
• D. Costal Angle

Answer: (B)

The key idea is identifying landmarks you can feel on the back to orient the spine and thorax. Vertebra prominens is the most prominent spinous process felt at the base of the neck, typically from the seventh cervical vertebra (C7). It’s a reliable posterior surface landmark because you can palpate it along the midline on the back, helping you locate the corresponding vertebral levels and divide the neck from the thorax. The other structures are on the front of the chest: the suprasternal notch sits at the top of the sternum, the sternal angle is at the join between the manubrium and the body of the sternum, and the costal angle marks the rib margins on the sides of the chest. These are anterior landmarks, not posterior ones.

The key idea is identifying landmarks you can feel on the back to orient the spine and thorax. Vertebra prominens is the most prominent spinous process felt at the base of the neck, typically from the seventh cervical vertebra (C7). It’s a reliable posterior surface landmark because you can palpate it along the midline on the back, helping you locate the corresponding vertebral levels and divide the neck from the thorax.

The other structures are on the front of the chest: the suprasternal notch sits at the top of the sternum, the sternal angle is at the join between the manubrium and the body of the sternum, and the costal angle marks the rib margins on the sides of the chest. These are anterior landmarks, not posterior ones.