If an animal is presented with a sore leg, you would check its which system?

When an animal presents with a sore leg, the primary system to evaluate is the musculoskeletal system. This system encompasses the bones, muscles, joints, tendons, and ligaments that contribute to movement and support. A sore leg can indicate issues such as fractures, sprains, strains, arthritis, or other injuries related to these components.

By examining the musculoskeletal system, a veterinarian or veterinary technician can identify the source of pain, determine the extent of any injury, and recommend appropriate treatment options. Conditions affecting this system often present with signs such as limping, swelling, or decreased range of motion, which are key indicators that guide the examination process.

In contrast, while the endocrine, respiratory, and nervous systems may also impact an animal's overall health, they are not directly related to the symptoms associated with a localized sore leg. The endocrine system regulates hormones and metabolism, the respiratory system manages oxygen and carbon dioxide exchange, and the nervous system controls signals throughout the body. Therefore, for a sore leg specifically, the musculoskeletal system is the correct focus for assessment.