An abnormally large volume of urine may be produced after a person drinks alcoholic beverages. Likely, ethyl alcohol affects normal secretion of
a) glucagon
b) thyroxine
c) antidiuretic hormone
d) insulin
Thyroxine
a) has specific target cells in the digestive system to increase metabolic rate
b) secretion is governed by negative feedback between the anterior pituitary and the thyroid gland
c) does not have one specific target as it can stimulate the cells of the heart, liver, kidney, and skeletal muscles
d) can be produced in excessive amounts when the anterior pituitary secretes too much FSH
If there is insufficient iodine in the diet, a low amount of thyroxine is synthesized. This causes
a) a negative feedback to the pituitary to produce more TSH
b) a condition in adults called hypothyroidism in which they are extremely active and cannot gain weight
c) the development of diabetes insipidus in young children
d) under-stimulation of the thyroid resulting in the formation of a goitre
Calcium is an important mirconutrient required in homeostasis. All of the following statements indicate an important role of calcium in a healthy body except
a) calcium is essential for the synthesis of thyroxine and cause a goitre is deficient
b) the mineral calcium is important for healthy bones and teeth
c) Calcium ions are essential for the proper sliding of actin and myosin in muscle contraction and relaxation
d) calcium plays an important role in the blood clotting mechanism
Calcitonin is a
a) tropic hormone that influences the parathyroid to secrete its hormones
b) hormone secreted by the parathyroid gland that lowers calcium levels in the blood
c) bone builder because it stimulates the removal of calcium from the blood\
d) bone destroyer because it demineralizes bones, making them weaker
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