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The myogenic mechanism occurs whenstretching triggers contraction of smooth muscles in the wall of arterioles to normalize blood flow and GFR (glomerular filtration rate) by increasing or decreasing blood pressure. N.B. i rephrased the concept a little bit.
source: principle of A&P by Tortora & Derrickson
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What part of the renal tubule has an elaborate countercurrent mechanism for reabsorption of sodium and water?
The loop of Henle has an elaborate countercurrent mechanism for reabsorption of sodium and water in the renal tubule. This mechanism allows for the generation of a concentration gradient that helps in the concentration of urine.
What is autoregulation?
Autoregulation is a specific form of homeostasis used to describe the tendency of the body to keep blood flow constant when blood pressure varies.[1]. While most systems of the body show some degree of autoregulation, it is most clearly observed in the kidney, the heart, and the brain.[2] Perfusion of these organs (especially the latter two) is essential for life, and through autoregulation the body can divert blood (and thus, oxygen) where it is most needed. One key component of autoregulation is the absence of central control. The "auto" in autoregulation refers to the ability of the organ to maintain a stable flow without the involvement of the autonomic nervous system.
IS the adjustment of blood flow to each tissue in proportion to its requirements at any point in time termed autoregulation?
No, the adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed tissue autoregulation. Autoregulation refers to the ability of an organ or tissue to regulate its own blood flow independent of systemic factors.
How does the counter current multiplier mechanism contribute to the establishment of a concentration gradient in the renal medulla?
The counter current multiplier mechanism in the kidney helps to create a concentration gradient in the renal medulla by continuously exchanging ions and water between the ascending and descending limbs of the nephron loop. This process allows for the reabsorption of water and solutes, leading to the concentration of urine in the medulla.
What is an example of autoregulation?
One example of autoregulation is the ability of the body to maintain a constant blood pressure by adjusting the diameter of blood vessels in response to changes in pressure. When blood pressure is too high, vessels will constrict to reduce blood flow, and when it is too low, vessels will dilate to increase blood flow, helping to maintain a steady pressure.
How the kidney protects itself from elevated hydrostatic?
Renal Autoregulation.
What are the mechanism for adequate renal blood flow?
Adequate renal blood flow is maintained by the autoregulation of the afferent and efferent arterioles in the kidneys, which adjust their diameter to maintain a stable renal blood flow across a range of blood pressures. Hormonal regulation, such as the renin-angiotensin-aldosterone system and release of vasodilatory prostaglandins also play a role in regulating renal blood flow. Additionally, the sympathetic nervous system can adjust renal blood flow through vasoconstriction of renal arterioles during times of stress or low blood pressure.
What mechanism is the general tendency of vascular smooth muscle to contract when stretched?
myogenic
During exercise blood flow to the active skeletal muscles in increased by autoregulation propose a mechanism based on the need for nutrients that would explain how an autoregulation might take place?
vasodilation
Which process results in increased blood pressure in response to hormone release?
myogenic mechanism
What has the author Linda Marie Facchini written?
Linda Marie Facchini has written: 'Characterisation of the Myc negative autoregulation mechanism'
Is toad's heart is myogenic?
Yes, a toad's heart is myogenic.
What is the definition for myogenic?
myogenic refers to the contraction of cardiac muscle cells.
What is used to protect mechanism used to protect the glomerulus from minor changes in blood pressure?
The mechanism used to protect the glomerulus from minor changes in blood pressure is called autoregulation. This process involves adjustments in the diameter of the afferent and efferent arterioles, which help maintain a relatively constant glomerular filtration rate (GFR) despite fluctuations in systemic blood pressure. Key factors in this autoregulatory response include myogenic mechanisms and tubuloglomerular feedback. These systems work together to ensure stable kidney function and protect the glomeruli from potential damage caused by pressure variations.
What are myogenic cells?
Myogenic cells are muscle precursor cells that have the ability to differentiate into muscle cells. They play a crucial role in muscle development, growth, and repair. Myogenic cells are typically found in skeletal muscle tissue.
What is a long-term mechanism for maintaining blood pressure?
Blood pressure can be regulated by counteracting fluctuations in the blood pressure by the renal system. This can be done by altering the blood volume.
What does Myogenic Mean?
The word myogenic means that the origin is in the muscles. This is in order to differentiate between nerve and muscle origin.
