You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following structures is located in the posterior interventricular sulcus? and explain in detail?
The middle cardiac vein runs in the posterior interventricular sulcus, and the small cardiac vein runs in the coronary sulcus along the right coronary aery. The great cardiac vein lies in the anterior interventricular sulcus. The coronary sinus continues to the right in the coronary sulcus. The oblique vein is usually very small and empties into the coronary sinus.