• Vertebral Ligaments in Domestic Animals:
• The Dorsal Longitudinal Ligament (Ligamentum longitudinale dorsale) runs along the floor of the vertebral canal on the dorsal surface of the vertebral bodies from the axis to the sacrum.
• It is particularly strong, thick, and wide in the thoracic region, where it reinforces the intervertebral discs against intense compressive and rotational forces exerted by the rib cage and locomotion.
• nalysis:
• (Thoracic area): Correct.

Correct option: (1) Thoracic area

• Osteology of the Equine Sternum:
• The equine sternum (breastbone) resembles a canoe or ship's keel (laterally compressed cranial carina).
• It is composed of unsegmented sternebral cartilages and ossified segments:
• In the adult horse, there are 7 sternal segments / sternebrae (or associated with 8 pairs of true/sternal ribs).
• nalysis:
• (Seven): Correct number of sternal segments.

Correct option: (3) Seven