Question

What is the role of hypothalamus and pituitary in human reproduction ? (Class 10 biology)

Answer 1

the hypothalamus located in the brain directly above the hypophysis  is known to exert control over it by means of neural connections and hormone like substances that are called releasing factors, the means by which the nervous system controls sexual behavior via the endocrine system. 
sexual behavior is influenced by by the hypothalamus. it stimulates the pituitary gland to release the sex hormones. 

Answer 2

hypothalamus is located in brain it is endocrine
sexual behavior is influenced by hypothalamus
it stimulates pituitary gland to release progesterone, estrogen (in female) and testosterone (in male)