Question

Destruction of the posterior hypothalamus can result in:

Question 22 options:

	increased uterine activity during labor
	dehydration as patient passes copious amounts of urine.
	decreased T4 and T3 secretion by the thyroid
	spontaneous fractures, as there is excessive bone loss

Answer 1

Destruction of the posterior hypothalamus can result in:

Question 22 options:

	increased uterine activity during labor- This incorrect as posterior pituitary produces oxytocin. If it is removed then the uterine activity will decrease during labor.
	dehydration as patient passes copious amounts of urine. This is correct as the posterior pituitary produces ADH. It helps in reabsorption of water from the filtrate. So, it will lead to dehydration as water will not be reabsorbed.
	decreased T4 and T3 secretion by the thyroid- This is incorrect as TSH is not produced by the posterior pituitary.
	spontaneous fractures, as there is excessive bone loss- This is incorrect as parathormone is not produced by the posterior pituitary.

So, the correct answer is B.