Body parts as assigned to houses are based on the logic that is hinged on the fact that some organs do have right and left parts, other though being single organs like the brain and heart are also categorized by medical science mostly in two parts the left and right part of it. To accommodate this the 12 houses of the horoscope are arranged in such a way that one half of the zodiac depicts the right side the other the left, talking about ears and eyes, the right ear is assigned a house 3, and the left the 11th it seems to defy logic, but both these houses depict the element air and are part of a breathing process or talking about ayurvedic Tridosha it represents the Vata, the sense of hearing is attributed to Jupiter and of the two houses three and 11 Jupiter is the Karak Significator of 11th, therefore the inference. Another factor that goes in favor of the systemic placement of ears in the 3rd and 11th is that air is an essential element for the sense of hearing and it exists within the ether element again represented by planet Jupiter. When sound waves travel toward you, the first part of the process of hearing involves the ears. The sound waves enter the ear and the sensitive structures of the inner ear pick up the vibrations. These vibrations stimulate nerves and create a signal which contains sound information, so the brain is the central organ here therefore and is signified by the first house or Lagna, and the right year from 3rd and left from 11th seems logical anatomy of the hearing process image as attached. The Drekana or d3 chart clearly categorizes these parts based on the number of degrees of the Lagna each being 10 degrees. The 0-10 degrees cover the face,10-20 neck to the pelvis, and 20-30 degrees the organs below the pelvis. The body parts again are clearly categorized on the left and right parts Similarly both eyes as depicted in 2 and 12 of the horoscope represent Kapha dosha both these eyes draw the source of the image and its depiction from the fiery or pitta house of Lagna through Alochoka pitta so Lagna or head has to be in between and common source of power and imagery. The heart as such is one organ yet it's divided into the left and right ventricle and it's assigned house no 5 some texts particularly Vrahmir maintains 4th to represent the heart, the heart is the body,s centralized pump that pumps blood and oxygen to various organs, while the right ventricle pumps the blood from the right atrium into the lungs to pick up oxygen and remove carbon dioxide. The left atrium receives blood from the lungs. This blood is rich in oxygen. The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood. So going by 4/5 the imposition of the organ heart the left part of it will be depicted in 10th and 11th and it's so 11th is the veinous flow and exhalation of breath expelling out CO2 from the body its called Vyana Vata. The anatomy of circulation is attached for the benefit of all. Continued -----------