- Where is the main nephron segment where Na+ reabsorption is adjusted to maintain excretion at level appropriate for dietary intakea) proximal tubuleb) loop of henlec) distal tubuled) collecting duct*** bonus: what is the primary regulator?
- how would an increase in pressure in the afferent arteriole affect renin release by the JG cells?
- Membrane-bound signals bind to receptors on adjacent cells in the following signaling mechanism:
- When ECF volume decreases, renal Na+ excretion is ____________
- A(n) ________________ in ECF volume results in an increased vascular volume, blood pressure, & cardiac output.
- A decrease in blood pressure, _________________ sympathetic nerve activity & ADH secretion. An increase in blood pressure _______________ sympathetic activity.a) decreases, decreasesb) increases, decreasesc) decreases, increasesd) increaases, increases
- T/F Afferent arterioles also act as baroreceptors (sensing change in pressure).
- Macula Densain response to a sustained decrease/increase in NaCl delivery, the macula densa stimulates/inhibits renin secretion via JG cells
- The Baroreceptors located in walls of cardiac atria & pulmonary vessels send signals to the brainstem via...*** not listed on OUR final review, but probably good to know
- These control the mechanisms of ADH release that are independent of osmoreceptors and plasma osmolarity.
- In contact-dependent signaling, the signaling molecule is bound to the ________ of one cell and is recognized by a receptor on another cell.
- A decrease in filling of pulmonary vessels & cardiac atria _____________ sympathetic nerve activity & ___________ ADH secretion.a) increases, inhibitsb) decreases, inhibitsc) increases, stimulatesd) decreases, stimulates*** not listed on OUR final review, but probably good to know
- When ECF volume increases, renal Na+ excretion is ____________
- Macula densa cells detect an increase in tubular NaCl concentration. How do they respond?** this is tubuloglomerular feedback (more an exam 1 sort of concept)
- A(n) _______________ in ECF volume results in reduced vascular volume, blood pressure & cardiac output.
- what two medication types contribute to non-osmoreceptor stimulated thirst?
- Central diabetes insipiduscan be treated with ______ an ADH analog. it can be administered inw hat 3 ways?** he mentioned not to worry about
- What is the osmotic threshold for ADH release?
- Axons from the OVLT and SFO neurons connect with which nucleus to produce ADH?OVLT and SFO neurons connect to which two things within the cortex? these two areas of the brain are involved with the perception of ___?In what situation do OVLT and SFO neurons stimulate ADH release and the urge to drink water?
- What type of signaling involves signals that pass through a cell junction from the cytosol of one cell to the cytosol of an adjacent cell?