What does autoregulation refer to quizlet?

What does autoregulation refer to quizlet?

autoregulation. the ability of a tissue to automatically adjust its own blood flow to match its metabolic demand for oxygen and nutrients supply and removal of wastes.

What does a high concentration of sodium chloride in the renal tubule at the Juxtaglomerular apparatus most likely indicate?

What does a high concentration of NaCl in the renal tubule at the juxtaglomerular apparatus (JGA) most likely indicate? Afferent arteriole diameter would decrease.

Which of the following is the best description of the glomerular filtration rate measurement quizlet?

Terms in this set (20) which of the following best describes glomerular filtration rate (GFR)? Fluid and small solutes that leave the glomerulus are collectively termed filtrate. Glomerular filtration is driven by glomerular hydrostatic pressure (HPg) and produces ~125 ml of filtrate per minute.

What is autoregulation of blood flow quizlet?

What is autoregulation? Ability of a tissue to adjust its own blood flow to match its metabolic demand for supply of O2 and nutrients and removal of wastes.

What is the result of renal autoregulation quizlet?

Describe renal autoregulation. pressure rises, GFR also rises because renal blood flow increases. However, the elevated blood pressure stretches the walls of the afferent arterioles. In response, muscle fibers in the wall contract, which narrows the arteriole’s lumen.

What regulatory mechanisms help control and stabilize GFR?

The dual regulation of both RBF and GFR is achieved by proportionate changes in the preglomerular resistance and is believed to be mediated by two mechanisms, tubuloglomerular feedback (TGF) and the renal myogenic response.

What is short term autoregulation of blood flow?

Autoregulation is a manifestation of local blood flow regulation. It is defined as the intrinsic ability of an organ to maintain a constant blood flow despite changes in perfusion pressure.

What is the role of myogenic autoregulation quizlet?

Terms in this set (34) What is the mechanism behind myogenic autoregulation in vascular smooth muscle? When cells stretch, mechanically gated cation channels open, depolarizing the cell, resulting in contraction. Under what circumstance would the heart produce significant levels of adenosine?

How does autoregulation occur?

Autoregulation of blood flow is the well-developed mechanism whereby cerebral resistance arteries dilate during reductions in CPP and constrict during increases in CPP. As a result, blood flow to the brain remains constant over a wide range of pressures.

What is autoregulation in homeostasis?

What is autoregulation of the kidney?

Renal blood flow (RBF) autoregulation is a vital homeostatic mechanism that protects the kidney from elevations in arterial pressure that would be transmitted to the glomerular capillaries and cause injury.

What happens in autoregulation of blood flow?

What is the function of autoregulation?

Autoregulation is a fundamental component of renal function. It integrates intrinsic intrarenal mechanisms that stabilize RBF and glomerular filtration rate (GFR) during changes in renal perfusion pressure (RPP) over a defined range.