A chemical signal that has both endocrine and neural roles is

1.	Melatonin	2.	Calcitonin
3.	Epinephrine	4.	Cortisol

Which one of the following hormones though synthesized elsewhere, is stored and released by the master gland?
1. Melanocyte stimulating hormone
2. Antidiuretic hormone
3. Luteinizing hormone
4. Prolactin

The amino acid tryptophan is the precursor for the synthesis of
1. Melatonin and serotonin
2. Thyroxine and triiodothyronine
3. Estrogen and progesterone
4. Cortisol and cortisone

Which hormones do stimulate the production of pancreatic juice and bicarbonate?
1. Gastrin and insulin
2. Cholecystokinin and secretin
3. Insulin and glucagon
4. Angiotensin and epinephrine

Which of the following is an amino acid derived hormone?
1. Estradiol
2. Ecdysone
3. Epinephrine
4. Estriol

Figure shows human urinary system with structures labelled (a) to (d). Select option which correctly identifies them and gives their characteristics and/or functions. 

1. (a) Adrenal gland-located at the anterior part of kidney.
Secretes catecholamines which stimulate glycogen break-down
2. (b) Pelvis-board funnel shaped space inner to hilum, directly connected to loops of Henle
3. (c) Medulla-inner zone of kidney and contains complete nephrons
4. (d) Cortex-outer part of kidney and do not contain any part of nephrons

Somatostatin from the hypothalamus:

Identify the incorrectly matched pair:

The only hormone secreted by pars intermedia of hypophysis is:

Pars distalis is: