This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
In transection between hypothalamus and anterior pituitary, the production of which hormone remains unaffected? 
Select and explain. 
A. Testosterone, B. Oxytocin, C. Thyroxine, D. Cortisol
B: Oxytocin
Answer: B: Oxytocin 
Explanation: (B) Oxytocin # Oxytocin is a posterior pituitary hprmone and rest are hormones regulated by releasing hormones of hypothalamus and thence anterior pituitary therefore transection btw hypothalamus and anterior pituitary does not effect the production of posterior pituitary hormone oxytocin.