The Brahmana said The wind nursed y Prana afterwards takes birth in Apana. The wind nursed in Apana then becomes developed into Vyana.
ब्राह्मण उवाच प्राणेन सम्भृतो वायुरपानो जायते ततः। अपाने सम्भृते वायुस्ततो व्यानः प्रवर्तते॥