 this is according to the popular opinion. as for the truth these are not places of origin but rather places of connection to what is related to those organs. and god is the grantor of success.
وهذا على الرأي المشهور. وأما الحق فإن تلك ليست بمنابت، وإنما هي مواضع اتصال ما به يتعلق بتلك الأعضاء. والله ولي التوفيق.