Regulation of Thyroxine by TSH

Q. Read the following carefully.
(a) Stimulate erythropoiesis
(b) Maintenance of water and electrolyte balance
(c) Regulate menstrual cycle
(d) Development and maturation of CNS
Which of the following hormone regulate above functions?

1. Adrenaline
2. Glucocrticoids
3. Thyroxine
4. Glucagon

Q.

What happens when the thyroid-stimulating hormone is high?

Q.

Explain the following biological abbreviation.

TSH

Q.

Hyperthyroidism is excessive secretion of thyroid hormone, this can happen due to

1. Excess secretion of TSH-RH from hypothalamus

2. All the above

3. Excess secretion of thyroid hormone in thyroid gland

4. Excess secretion of TSH from pituitary gland

Q. Low levels of TSH can be found in

1. Cretinism
2. Hyperthyroidism
3. Hypothyroidism
4. Jet lag

Q.

Match thefollowing:

Column I		Column II
a	T4	i	Hypothalamus
b	PTH	ii	Thyroid
c	GnRH	iii	Pituitary
d	LH	iv	Parathyroid