The linked video is all about the development of pituitary gland from the neuronal tissue. The pituitary gland is the link between the nervous system and endocrine system. Timeline: 00:23 introduction and origin 02:33 Parts of pituitary gland 03:07 development of pituitary gland 06:33 Parts of adenohypophysis and neurohypophysis 08:05 pharyngeal hypophysis