The arteries issuing from the heart run upwards and downwards and also in oblique directions, they carry the best essence of our food and are acted upon by the ten Prana airs.
प्रवृत्ता हृदयात् सर्वे तिर्यगूर्ध्वमधस्तथा। वहन्त्यन्नरसान् नाड्यो दशप्राणप्रचोदिताः॥