Fluid Balance and Endocrine Regulation

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Can you name the HYTQ?

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What type of catecholamine receptors are located on JG cells promoting renin secretion?
True or False: Angiotensin II can act in the brain to increase water and sodium intake.
What organ is really important for the regulation of Na and Water levels?
Where is renin made?
cells in the brain that detect changes in osmolality of the extracellular fluid
angiotensin II acts in the brain by using the ______ organs to bypass the blood brain barrier.
What natriuretic peptide is made by ventricular myocytes?
What hormone is released by the adrenal cortex can act on the liver stimulating angiotensinogen?
Receptor for ANP and BNP
Where in the kidney does ADH act to increase water resorption?
What is ANP and BNP's affect on blood vessels?
shrinkage of osmoreceptors due to a decrease in water intake (hyperosmolar) activates the neurons in the SO and PVN nuclei of the hypothalamus to induce secretion of what hormone?
with a decrease in osmolalilty, cell in the body shrink or swell?
Where are the 2 natriuretic peptides made?
True or False: ANP and BNP promote Na excretion and water excretion.
When sodium is ingested, what happens to the osmolality of the body's fluids?
True or False: Aldosterone acts to increase water excretion.
True or False: The secretion of ANP is controlled by activation of stretch receptors in the atria of the heart.
True or False: angiotensin II is a negative feedback regulator of renin secretion.
Information from the left atria, aortic arch, and carotid sinus is detected baroreceptors and sent to the brainstem via which two nerves?
caused by inadequate synthesis or release of ADH due to a head injury or brain tumor. It results in large volumes of urine.
True or False: ADH increases urine volume.
angiotensinogen is made in the _____.
primary control point for the production of angiotensin II
Angiotensin II binds to what receptor on the JG cells to inhibit renin secretion?
enzyme responsible for converting angiotensin I to angiotensin II
When plasma is hyposmolar, Is urine volume increased or decreased?
true or false: angiotensin II is produced in the blood.
Total volume of Body Water (L)
True or False: Aldosterone acts at the collecting duct and distal tubule of the kidney to promote reabsorption of Na and Cl.
True or False: The macula densa cells detect a decrease in Na filtration then through a paracrine mechanism renin is released by the JG cells.
True or False: The V2 receptor activates adenylyl cyclase, increasing cAMP levels, activating protein kinase A, which activates aquaporin 2 channels at the collecting duct of the k
Swelling of osmoreceptors inactivates neurons in the SO and PVN nuclei decreasing or inhibiting synthesis and release of ADH at the posterior pituitary.
known biomarker of heart failure
When osmolality ____, cells in the body shrink
What natriuretic peptide is made by atrial myocytes?
True or False: The parasymapthetic nervous system is involved in promoting the secretion of renin.
pathological problem that occurs when kidney fails to respond to ADH due to defective V2 receptors or aquaporin 2. causes production of large volumes of urine with normal levels of
What are the 2 natriuretic peptides?
Where is angiotensin converting enzyme found?
Which ADH receptors are found in the arterioles?
Where in the kidney does angiotensin II act to increase water and sodium intake?
Which ADH receptor is responsible for its actions on the kidney?
angiotensin II acts at the zona glomerulosa of the adrenal cortex to produce what hormone?
True or False: Thirst is activated by shrinkage of osmoreceptors in the brain.
with a ____ in water intake, osmolality increases
a decrease in blood volume as detected by the baroreceptors of the kidney cause the release of what hormone?
Where are the brain osmoreceptors located?
What is angiotensin II affect on blood vessels?
The osmoreceptors in the brain project to which 2 nuclei of the hypothalamus?
True or False: angiotensin can act at sympathetic nervous system to inhibit the release of norepinephrine.
The actions of ANP and BNP primarily oppose the affects of what hormone?
major sites of action for aldosterone in the kidney (2 places)
an increase in water intake causes a _____ in osmolality

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Created Feb 25, 2012ReportNominate
Tags:balance, endocrine, regulation