A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low…
A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate (ii) increase in body weight and (iii) tendency to retain water in tissues is :
Cretinism
Hypothyroidism
Simple goiter
Myxoedema
Solution
Myxoedema is a condition resulting from a deficiency of thyroxine (T4) in adults. It is characterized by symptoms such as a low metabolic rate, weight gain, and water retention in tissues (leading to swelling).
Cretinism: Occurs in infants and children due to a severe deficiency of thyroid hormones, leading to developmental delays and stunted growth.
Hypothyroidism: Refers to a general condition of low thyroid hormone levels but is a broader term, not a specific disorder.
Simple goiter: A condition in which the thyroid gland enlarges, typically due to iodine deficiency, but does not directly describe the symptoms in the question.
Thus, Myxoedema is the correct answer.