At that time, Shri Ramkrishna Paramhans had explained the meaning of 'Sai' in his pravachan, In the opinion of power, the one who has acquired the world i.e. a Siddha Purush is said to be Koul, according to Vedant, it is Paramhans, so according to Boul Vaishnav (a sub custom of Bengal) it is called Sai.
The tibialis anterior muscle is the largest muscle located in the anterior (front) compartment of the leg. The blood supply to the tibialis anterior muscle comes primarily from the anterior tibial artery and its branches.
The anterior cerebral artery extends upward and forward from the internal carotid artery. It supplies the frontal lobes, the parts of the brain that control logical thought, personality, and voluntary movement, especially of the legs. Stroke in the anterior cerebral artery results in opposite leg weakness.