A chemical signal that has both endocrine and neural roles is 

(1) melatonin

(2) calcitonin

(3) epinephrine

(4) cortisol

Fight or flight reactions cause activation of 

1. the parathyroid glands, leading to increased metabolic rate

2. the kidney, leading to suppression of reninangiotensin-aldosterone pathway

3. the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine

4. the pancreas leading to a reduction in the blood sugar levels

A pregnant female delivers a baby, who suffers from stunted growth mental retardation low intelligence quotient and abnormal skin. This is the result of
1. deficiency of iodine in diet
2. low secretion of growth hormone
3. cancer of the thyroid gland
4. over secretion of pars distalis

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

1. Adenohypophysis is under direct neural regulation of the hypothalamus

2. Organs in the body like gastrointestinal tract. heart, kidney and liver do not produce any hormones

3. Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones

4. Releasing and inhibitory hormones are produced by the pituitary gland

Select the answer which correctly matches the endocrine gland with the hormone it

secretes and its function/deficiency symptom

__________________________________________________________________
       Endocrine gland       Hormone                 Function/deficiency symptoms
__________________________________________________________________
1. Anterior pituitary        Oxytocin                 Stimulates uterus contraction during
                                                                    child birth

2. Posterior pituitary       Growth                    Oversecretion stimulates abnormal
                                      Hormone(GH)            growth

3. Thyroid gland             Thyroxine                 Lack of iodine in diet results in goitre

4. Corpus Luteum            Testosterone             Stimulates spermatogenesis
_____________________________________________________________________

Which one of the following pairs of hormones are the examples of those that can easily

pass through the cell membrane of the target cell and bind to a receptor inside it (mostly

in the nucleus)?

1. Insulin and glucagon

2. Thyroxin and insulin

3. Somatostatin and oxytocin

4. Cortisol and testosterone

What is correct to say about the hormone action in humans?
1. Glucagon is secreted by $\mathrm{\beta }$-cells of islets of Langerhans and stimulates glycogenolysis
2. Secretion of thymosine is stimulated with ageing.
3. In females, FSH first binds with specific receptors on ovarian cell membrane
4. FSH stimulates the secretion of oestrogen and progesterone

Match the source gland with its respective hormone as well as the function.

Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.

Options :

      A                B                 C

1. Placenta  Insulin         Vasopressin
2. Ovary     Insulin         Calcitonin      
3. Placenta  Glucagon     Calcitonin
4. Ovary     Glucagon     Growth hormone

Injury to adrenal cortex is not likely to affect the secretion of which one of the following ?
1. Aldosterone
2. Both androstenedione and dehydroepiandrosterone
3. Adrenalin
4. Cortisol