GFR is Subject to Autoregulation What is autoregalation? What is a myogenic resp

Question

GFR is Subject to Autoregulation What is autoregalation? What is a myogenic response? y is a decrease in GFR when blood pressure falls below normal an adaptive response? How does the distal convoluted tubule communicate with the arterioles What are the granular cells located? enzyme called The granular cells secrete an , which has a role in and balance Hormones and Autonomic Neurons also Influence GFR Vasoconstriction of the afferent arteriole will (increase decrease) its resistance, will (increase/decrease) hydrostatic pressure in the glomerulus and will (increase/decrease) GFR Vasoconstriction of the efferent arteriole will (increase/decrease) its resistance, will (increase/decrease) hydrostatic pressure in the glomerulus and will (increase/decrease) GFR. Hormones that influence arteriole resistance and GFR include potent vasoconstrictor and a group of regulators called which is a which are vasodilators. Reabsorption The bulk of reabsorption in the nephron takes place in the Which ion plays a key role in bulk reabsorption in the proximal (convoluted) tubule? List some molecules that are transported using Na"-linked secondary active transport:

Explanation / Answer

1. Autoregulation is the ability of tissue to mitigate the change in response by on it's own.

2. Myogenic response is the ability of blood vessels (mainly arteries and arterioles) to maintain a constant blood pressure (either by vasoconstriction or vasodilation).

3. If GFR decreases then it means - blood flow to kidney is decreased and decreaSe in urine output. This reduces fluid loss and hence maintain blood volume (it also diverts blood to other major organ like brain)

4. It communicate with afferent arteriole to form Juxtaglomerular apparatus. It is composed of - macula sensation, JG cells and Mesengial cells. It is responsible for secretion of renin.

5. Granular cell (also called as JG cells) are located near glomerular (juxta means next). They secrete RENIN, which has role in Electrolyte and blood pressure balance.

6. Increase resistance, Decrease hydrostatic pr. Decrease GFR.

7. Increase resistance, increase hydrostatic or. Increase GFR

8. Angiotensin. Atrial natriuretic hormone

9. Proximal convulucon tubule

10. Sodium.

11. Glucose , amino acid ,

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