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

Options

A. Adenohypophysis is under direct neural regulation of the hypothalamus
B. Organs in the body like gastro-intestinal tract, heart, Kidney and liver do not produce any hormones
C. Non-nutrient chemicals produced by the body in trace amount that act as inter-cellular messenger are known as hormones
D. Releasing and inhibitory hormones are produced by the pituitary gland.

Answer

C

Explanation

Endocrine cells are present in different parts of the gastro-intestinal tract, e.g. gastrin, secretin, GIP. Atrial wall of our heart secretes a peptide homone called ANF (Atrial Natriuretic Factor). RH/IH are produced by hypothalamus. Adenohypophysis is not directly under neural control, it is under the control of hypothalamic hormones, brought by portal system.