Exam 11: Endocrine Glands: Secretion and Action of Hormones

Pineal gland production of melatonin is stimulated by the _______________ of the hypothalamus.

Which of the following is an effect of hyperthyroidism?

The stomach and small intestines release hormones to help coordinate activities with the autonomic nervous system for digestion.

Steroid hormone influence on gene expression is known as

Cortisol secretion would cease if the _________ no longer secreted ACTH.

Melatonin has an extremely important role in the onset of human puberty.

___________________ can form a goiter due to the presence of autoantibodies that exert TSH-like effects on the thyroid.

A deficiency of dietary iodine would result in excessive TSH secretion.

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Testosterone receptors would be ____________ in response to anabolic steroid abuse

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

Hormone receptors have a high capacity and a low affinity.

Purported beneficial effects of melatonin include all of the following EXCEPT

Activated calmodulin will,in turn,activate protein kinases.

What is needed to control secretion of melatonin from the pineal gland?

The zona glomerulosa of the adrenal cortex secretes the mineralocorticoids.

Binding of epinephrine to beta-adrenergic receptors in the plasma membrane will activate the ______ second messenger system.

A deficiency of dietary cholesterol would decrease the production of

After menopause,the principal estrogen is estrone that is produced by the adrenal cortex.

Most lipid-soluble hormones are derived from cholesterol.