Intro To Hormones Endocrine Glands I

Which of the following statements is correct in relation to the endocrine system?

1.	Organs in the body like the gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2.	Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messengers are known as hormones.
3.	Releasing and inhibitory hormones are produced by the pituitary gland.
4.	Adenohypophysis is under direct neural regulation of the hypothalamus.