Final answer:
When yin deep luo-connecting channels are injured, there is a tendency to bleed downward, in accordance with the principles of Traditional Chinese Medicine that associate yin channels with downward movement.
Step-by-step explanation:
Generally, when yin deep luo-connecting channels are injured, there is a general tendency to bleed downward. This principle is based on Traditional Chinese Medicine which associates yin channels with the inner aspects of the body which tend to move energy and, in this case, pathological factors such as blood, in a downward direction following the flow of gravity and the body's own energetic tendencies.
The idea of luo-connecting channels refers to a network of secondary channels that branch off from the primary acupuncture meridians. These channels are thought to provide further connections between the main channels and the body's tissues and organs. According to TCM theory, the luo-connecting channels can become congested or injured, and when they do, they can manifest symptoms in specific areas.
When it comes to yin luo-connecting channels, which are linked to more passive, internal functions, injury can lead to bleeding in a downward direction such as could be seen with certain types of hemorrhages or excessive menstrual flow.