Exam 6: The Endocrine Glands

One of the primary functions of cortisol secretion at normal physiological levels is its anti-inflammatory action.

An increase in plasma PO₄³⁻ concentration forces a reduction in plasma Ca²⁺ as a result of the inverse relationship between plasma PO₄³⁻ and Ca²⁺ levels.

Which of these statements applies to the adrenomedullary hormones

Using the letter code, match the cells with the descriptions.(Options may be used more than once or not at all.) A)osteoblast B)osteocyte C)osteoclast ____ dissolves bone ____ secretes organic matrix of bone ____ forms a membrane between the bone fluid and ECF across which Ca²⁺ efflux occurs ____ stimulated by PTH ____ inhibited by PTH ____ inhibited by calcitonin

Which of these hormones secreted by the adrenal gland does NOT promote an increase in the blood glucose level

Insulin is secreted by the alpha cells of the islets of Langerhans.

Which of the following situations occurs in reactive hypoglycaemia

Which of the following is characteristic of Conn's syndrome

The absorptive state is directed by an increase in insulin secretion.

____________________ and ____________________ are collectively referred to as thyroid hormone.

Which of these events would be expected from a drop in blood pressure

The adrenal medulla is actually a modified part of the sympathetic nervous system.

Insulin secretion is decreased and glucagon secretion is increased in response to a fall in blood glucose concentration.

Aldosterone and cortisol are both considered to be essential for life.

Which of these hormones is NOT secreted in response to stress

Epinephrine and norepinephrine exert identical effects in all tissues.

Which of the following is NOT an effect of epinephrine

Gluconeogenesis and glycogenolysis in the liver play a major role in maintaining a constant blood glucose level between meals.

Which statement does NOT describe a goitre

_____________________ refers to the synthesis of larger organic molecules from smaller organic molecules.