Oxytocin and ADH are synthesized:
1. in neurosecretory cells that originate in the hypothalamus
2. in the posterior pituitary
3. in the hypothalamic-hypophyseal portal system
4. in the pineal

Growth hormone is secreted by the:
1. mammatropes
2. gonadotropes
3. corticotropes
4. somatotropes

Under stress, the human body shows an increased secretion of:
1. thyroid-stimulating hormone
2. adrenocorticotropic hormone
3. luteinizing hormone
4. prolactin

It is not advised to consume alcoholic beverages on hot days because alcohol inhibits the release of:
1. antidiuretic hormone
2. oxytocin
3. thyroxine
4. triiodothyronine

The peptide thyroid hormone that lowers calcium and phosphate ion concentration in the blood is:

A condition of severely stunted physical and mental growth owing to untreated congenital deficiency of thyroid hormone (congenital hypothyroidism) usually owing to maternal hypothyroidism, is known as:
1. Grave's disease
2. cretinism
3. Hashimoto's disease
4. myxedema

The most likely cause of the Type I [juvenile-onset IDDM] is:
1. The receptors on the target cells become no longer responsive to insulin.
2. Immune cells attack the pancreas that can then no longer produce insulin.
3. The individual consumes too much sugar, which causes an overload in the bloodstream.
4. Obesity seems to be the most common cause of IDDM.

The body's circadian rhythm is primarily regulated by:
1. thymus
2. pineal
3. thyroid
4. pituitary

The human body is under neuroendocrine control. The endocrine regulation is not characterized by:
1. hormones reach targets through the blood
2. effects are slow and cyclic
3. rapid acting effects
4. effects caused by chemicals

Some hormones act through a second messenger. In such a case, the first messenger would be:
1. Diacyl glycerol
2. hormone
3. source cell
4. receptor