Thyroid hormones cannot be synthesized without……….
a) bromine
b) iodine
c) chlorine
d) fluorine
Explanation Three iodine molecules are added to make triiodothyronine, and four for thyroxine
The under-secretion
thyroid hormone due to the deficiency of iodine causes low level of thyroxin in
the blood; which hormone do you expect to be released excessively?
a) thyroxin
b) calcitonin
c) TSH
d) FSH
Explanation Excess TSH over stimulates thyroid gland and cause it to enlarge
Under activity of thyroid gland causes…. diseases?
a) Goiter
b) Graves
c) Rickets
d) Oesteomalcia
Explanation this is called hypothyroidism due to the deficiency of iodine
The deficiency of thyroxin at birth time causes severe hypothyroidism in infants called………
a) Goiter
b) cretinism
c) exophthalmia
d) myxedema
Explanation Cretinism is a condition of severely stunted physical and mental growth due to untreated congenital deficiency of thyroid hormones (congenital hypothyroidism).
Hypothyroidism in adult human individual result in……..
a) myxedema
b) gull’s disease
c) mucus swelling
d) all of these
Explanation Gull's disease, also known as Myxoedema, occurs due to deficiency of thyroid hormone in adults, after the mental and physical growth is complete
Which of the following complications are related with cretinism (hypothyroidism in infants)?
a) mental retardation and poor physical growth in child
b) disproportionate body size and infertility
c) bone maturation and puberty are severely delayed
d) all of these
