Write on Hyperthyroidism and Hypothyroidism.

Explanation

In infants, hypothyroidiam causes cretinism. A cretins shows retarded skeletal growth, absence of sexual maturity, retarded mental ability, thick wrinkled skin, protruded enlarged tongue, bloated face, thick and short limbs occurs. The other symptoms are low BMR, slow pulse rate, subnormal body temperature and elevated blood cholesterol level.
Hyposecretion of thyroid in adults causes my xodema. It is otherwise called Gull's disease. This disease is characterised by decreased mental activity, memory loss, slowness of movement, speech, and general weakness of body, dry coarse skin, scarce hair, puffy appearence, disturbed sexual function, low BMR, poor appetite, and subnormal body temperature.
Grav'es diseas also called as thyrotoxicosis of exophthalmic goitre. This diseas is caused due to hyper secretion of thyriod. it is characterised by enlargeent of thyroid gland. increases BMF (50% -100%), elevated respiratory and excretory rates, increasesd heat beat.
high BP, increases body temperature, protrusion of eyeball and weakness of eye muscles and weight loss. Simple goitre is also known as Endemic goitre. It is caused due to hyposecretion of thyroxine. The symptoms includes enlargement of thyroid gland, fall in serum thyroxine level, increases TSH secretion