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What is the mechanism of action of lipid-soluble hormone?
Activation of genes, which increase protein synthesis in the cell
After a lipid- soluble hormone is bound to its intracellular receptor, what does the hormone complex do?
Acts as a transcription factor and binds DNA, activating a gene.
What keep intracellular receptors from binding to DNA before a hormone binds to the receptor?
Chaperone protein (chaperonins)
The stimuli causing endocrine gland to secrete their hormones in direct responce to changing blood levels of certain critical ions and nutrients are called
Which of the following hormones helps the body avoid dehydration and water overload?
Antidiuretic Hormone (ADH)
Which of the following is a hormone produced by the posterior pituitary?
None of this: Oxytocin, HGH, ADH
Which hormone pairs are antagonists that regulate blood calcium ion levels?
The hypothalamus is known to control activity of the anterior pituitary, which has traditionally been called the " master endocrine gland" T or F
The anatomical effects of acromegaly can usally be reversed by surgically removing the tumor from the anterior pituitary. T o F
What pairs correctly match the adrenal gland zone or area with the class of hormones it produces
Which hormone stimulates production of RBCs and which organ or structure produces it >?
which of the following hormones stimulates the adrenal cortex to release glucocorticoids that help the body to resist stressors?
Virtually all the protein or amino acid- based hormones exert their effects through intracellular ____
Steroid hormones exert their action by
Entering the nucleus of a cell and intiating or altering the expression of a gene
Thyroid hormone ( a small iodinated amine) enters target cells in a manner similar to___
steroid hormones, because both diffuse easily into target cells
Which is not a homeostatic imbalance related to underactivity of the thyroid gland?
Why does antidiuretic hormone help regulate an abnormal increase in solute concentration in the extracellular fluid?
it causes reabsorption of water by the kidneys, resulting in increased blood water volume and a decreased solute concentration.
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