Which organ is primarily involved in the smooth flow of Qi and blood storage?

The liver plays a crucial role in the smooth flow of Qi and the storage of blood within the context of Traditional Chinese Medicine (TCM). It is said to regulate the flow of Qi throughout the body, ensuring that energy moves freely and without obstruction. This proper flow is essential for maintaining balance and preventing stagnation, which can lead to emotional and physical symptoms.

Additionally, the liver is responsible for storing blood during times of rest and releasing it during periods of exertion. This function is particularly important as it helps sustain energy levels, supports healthy menstruation in women, and ensures that the body is nourished and able to respond to various physical demands.

In TCM, it is frequently observed that when liver Qi is stagnant, it can lead to a range of issues, including irritability, stress, and digestive problems. Therefore, understanding the liver's role in Qi and blood management is vital in addressing health concerns holistically. The other organs mentioned in the options have their specific roles—like the heart for blood circulation and the spleen for digestion and production of Qi—but the liver specifically encapsulates these dual functions of Qi flow and blood storage.