In a canine, which thoracic spinous process is the first easily palpable?

In a canine, which thoracic spinous process is the first easily palpable?

• A. T1
• B. T2
• C. T3
• D. T4

Answer: (B)

When locating thoracic landmarks in dogs, the earliest palpable spinous process is the second thoracic vertebra. The spinous process of the first thoracic vertebra sits high under the neck and is often hidden by thick neck muscles and the base of the shoulder girdle, so it isn’t easily felt. The second thoracic vertebra lies just caudal to that area and its spinous process protrudes as a distinct, felt bump without being obscured by the scapula, making it the first readily palpable landmark along the thoracic spine. As you move caudally, the subsequent spinous processes become progressively easier to feel.

When locating thoracic landmarks in dogs, the earliest palpable spinous process is the second thoracic vertebra. The spinous process of the first thoracic vertebra sits high under the neck and is often hidden by thick neck muscles and the base of the shoulder girdle, so it isn’t easily felt. The second thoracic vertebra lies just caudal to that area and its spinous process protrudes as a distinct, felt bump without being obscured by the scapula, making it the first readily palpable landmark along the thoracic spine. As you move caudally, the subsequent spinous processes become progressively easier to feel.