What is the correct number of cervical, thoracic, and lumbar vertebrae in the horse?

The anatomy of the horse includes a specific number of vertebrae in different regions of the spine, which is important for understanding the structural support and movement of the animal. In horses, there are typically 7 cervical vertebrae, which is consistent across many mammals, including humans. The thoracic region contains 18 vertebrae, which provide attachment points for the ribs and play a crucial role in the horse's ability to support its weight and movement. Finally, the lumbar region consists of 6 vertebrae, which are important for supporting the horse's back and facilitating movement.

Therefore, the correct answer reflects this anatomical standard: 7 cervical, 18 thoracic, and 6 lumbar vertebrae in the horse. Understanding the configuration of these vertebrae is vital for anyone involved in horse evaluation since it influences the horse's conformation, soundness, and performance.