Can B blood type parent ,and a O blood type parent have a child with a O blood type?

Yes

Explanation:

Can they have a O blood type child? Yes, yes they can, plus they may end up on a different blood type

The neuroendocrine system is composed of nerve impulses and hormones circulation. This system involves the glands which secrete numerous hormones, for maintaining bodily functions such as, homeostasis, and other physiological functions. The release of oxytocin, vasopressin, etc. are a part of this system.