Multiple Choice QuestionsFeeling the tremors of an earthquake a scared resident of the seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?
Thyroxin
Adrenaline
Glucagon
Glucagon
A person is having problems with calcium and phosphorus metabolism in his body. Which one of following glands may not be functioning properly?
Parathyroid
Parotid
Pancreas
Pancreas
Compared to a bull a bullock is docile because of
higher levels of thyroxin
higher levels of cortisone
lower levels of blood testosterone
lower levels of blood testosterone
A steroid hormone which regulates glucose metabolism is
cortisol
corticosterone
11-deoxycorticosterone
11-deoxycorticosterone
Which one of the following is not a second messenger in hormone action?
cGMP
Calcium
Sodium
Sodium
C.
Sodium
Second messengers are the organic molecules and sometimes the metal ions, acting as intracellular signals, whose production or release usually amplifies a signal such as a hormone, received at the cell surface.
Sodium (Na) is not a second messenger to be discovered.
In addition to cyclic AMP, Cyclic Guanosine Monophosphate (CGMP) functions as a second messenger in certain cases.
Calcium ions (Ca++) also act as second messenger in phospholipase 
second messenger system.
Which of the following is an accumulation and release centre of neurohormones?
Posterior pituitary lobe
Intermediate lobe of the pituitary
Hypothalamus
Hypothalamus
Which hormone causes dilation of blood vessels, increased oxygen consumption and glycogenolysis?
ACTH
Insulin
Adrenalin
Adrenalin
A temporary endocrine gland in the human body is
Pineal gland
Corpus cardiacum
Corpus luteum
Corpus luteum
GnRH, a hypothalamic hormone, needed in reproduction, acts on
Anterior pituitary gland and stimulates secretion of LH and oxytocin
Anterior pituitary gland and stimulates secretion of LH and FSH
Posterior pituitary gland and stimulates secretion of oxytocin and FSH
Posterior pituitary gland and stimulates secretion of oxytocin and FSH
A decrease in blood pressure/volume will not cause the release of
Renin
Atrial Natriuretic Factor
Aldosterone
Aldosterone
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