Exam 5: Principals of Endocrinology; The Central Endocrine Glands

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all). -releases vasopressin and oxytocin into the blood

Which hormone type does NOT require membrane receptors to invoke cell responses?

Transmission of nerve impulses from the hypothalamus to the anterior pituitary causes the stored hormones to be released.

Which hormone secreted by the anterior pituitary is nontropic?

Indicate which hormone is responsible for each action by using the answer code (options may be used more than once or not at all). -stimulates uterine contractions

What does excessive growth hormone secretion in an adult lead to?

The ____________________hormones are derived from tyrosine.

All amine hormones are hydrophilic.

The hypothalamus synthesizes and regulates the release of hormones from the posterior pituitary.

Which is an INCORRECT association?

Once a steroid hormone binds with its intracellular receptor,the hormone-receptor complex binds with a specific hormone response element on DNA,thereby activating a particular gene.

Only hormones that are not bound to plasma proteins are biologically active.

A deficiency in which of the following may result in dwarfism?

The thyroid hormone produces growth-promoting effects directly.

Steroid hormones act through the second-messenger system.

Indicate which of the features apply to the posterior and anterior pituitary by using the answer code (options may be used more than once or not at all). -composed of glandular tissue

Which statement concerning peptide hormones is INCORRECT?

The hypothalamus is the highest integrative centre in the hierarchical chain of command in endocrine control.

Indicate which characteristics apply to the hormones below by using the answer code. -once synthesized,actively transported into preformed vesicles for storage

Describe circadian rhythms and the mechanisms thought to control them.