ch 16

Question 1

characterized by weight gain, cold intolerance, slow heart rate, low blood pressure, and a goiter; can be due to an immune system disorder or a lack of available iodine

Answer 1

hypothyroidism

Question 2

develops when an infant is born with inadequate thyroid function; can lead to delayed physical and nervous system development; potentially mental retardation if left untreated

Answer 2

Congenital hypothyroidism (cretinism)

Question 3

characterized by weight loss, heat intolerance, disruptions in blood pressure and heart rhythms, and development of a goiter and exophthalmos (enlargement of thyroid gland and protruding eyeballs, respectively)

Answer 3

hyperthyroidism

Question 4

most common cause of hyperthyroidism; results from immune system producing abnormal proteins that mimic actions of TSH on thyroid gland

Answer 4

graves’ disease