Which points are associated with the umbilicus line in acupuncture?

The correct answer includes Ren-8, K-16, ST-25, and SP-15, all of which are situated along the umbilicus line in acupuncture. This line, also referred to as the "umbilical line," serves as an important anatomical reference in acupuncture practice.

Ren-8, known as "Shenque," is located at the center of the umbilicus and is vital for regulating the functions of the lower abdomen and treating digestive issues. K-16, or "Huangshu," is positioned 0.5 cun lateral to the umbilicus and plays a role in managing conditions related to the kidneys and the lower abdomen. ST-25, "Tianshu," is on the lateral side of the umbilicus and is commonly used for gastrointestinal disorders. Finally, SP-15 is located 4 cun lateral to the umbilicus, contributing to the regulation of the spleen and digestive health.

These points collectively address conditions associated with the abdominal area and the organs that are anatomically aligned with the umbilical line. Other choices do not feature a combination of points that consistently align with the umbilicus line, making them less relevant for this specific question.