Table of Contents
- 1 Is blood pressure in the renal glomerulus is lower than in most parts of the body?
- 2 How does the glomerulus differs from other capillaries in the body?
- 3 Which of the following is the best explanation for why the cells of the proximal convoluted tubule PCT contain so many mitochondria?
- 4 What happens if the diameter of the afferent arterioles leading to the glomerulus decreases?
- 5 Why does the glomerulus have high pressure?
- 6 How is glomerulus pressure regulated?
- 7 What would happen to the GFR if the capsular hydrostatic pressure increases?
- 8 What type of response by the afferent arterioles would you expect if blood pressure decreased?
- 9 What causes the renal tubules to reclaim sodium ions?
- 10 Why is the fatty tissue around the kidneys important?
- 11 How is urine transported from the kidney to the urinary bladder?
Is blood pressure in the renal glomerulus is lower than in most parts of the body?
15) Blood pressure in the renal glomerulus is lower than in most parts of the body in order to conserve body water.
How does the glomerulus differs from other capillaries in the body?
The glomerulus receives its blood supply from an afferent arteriole of the renal arterial circulation. Unlike most capillary beds, the glomerular capillaries exit into efferent arterioles rather than venules.
Which of the following statements best describes the difference between the intrinsic and extrinsic controls of the kidney?
Which of the following statements best describes the difference between the intrinsic and extrinsic controls of the kidney? Extrinsic controls will reduce blood plasma volume while intrinsic controls will increase blood plasma volumes.
Which of the following is the best explanation for why the cells of the proximal convoluted tubule PCT contain so many mitochondria?
Proximal tubules require more active transport mechanisms than other renal cell types because they reabsorb 80% of the filtrate that passes through the glomerulus, including glucose, ions, and nutrients. As such, they contain more mitochondria than any other structure in the kidney.
What happens if the diameter of the afferent arterioles leading to the glomerulus decreases?
If the diameter of the afferent arterioles leading to the glomerulus decreases (vasoconstriction) which of the following is not likely to occur? A) Glomerular filtration rate will decrease.
What is the best explanation for the microvilli on the?
2) What is the best explanation for the microvilli on the apical surface of the proximal convoluted tubule (PCT)? A) They increase the surface area and allow for a greater volume of filtrate components to be reabsorbed. You just studied 59 terms!
Why does the glomerulus have high pressure?
It is because the afferent arteriole, which delivers blood to the glomerulus, has little vascular resistance because it is short and wide. So the pressure decrease is smaller compared to other tissues. And the pressure in capillaries of glomeruli is so high because it is specialized for filtration.
How is glomerulus pressure regulated?
How is the glomerular filtration rate regulated? the kidney itself can adjust the dilation or constriction of the afferent arterioles, which counteracts changes in blood pressure. This intrinsic mechanism works over a large range of blood pressure, but can malfunction if you have kidney disease.
What are the pressure accounts for the other three?
Which pressure accounts for the other three? net filtration pressure; Net filtration pressure is a combination of glomerular hydrostatic pressure minus capsular hydrostatic pressure and colloidal osmotic pressure. Which of the following is NOT a major urine formation process?
What would happen to the GFR if the capsular hydrostatic pressure increases?
Increased Bowman’s capsule hydrostatic pressure will decrease GFR, while decreased Bowman’s capsule hydrostatic pressure will increase GFR. An example of this is a ureter obstruction to the flow of urine that gradually causes a fluid buildup within the nephrons.
What type of response by the afferent arterioles would you expect if blood pressure decreased?
When blood pressure drops, the same smooth muscle cells relax to lower resistance, increasing blood flow. The vasodilation of the afferent arteriole acts to increase the declining filtrate formation, bringing NFP and GFR back up to normal levels.
What happen to blood pressure resistance and NFP when efferent arterioles constrict?
Constriction of the Afferent and Efferent Arterioles If the arterial blood pressure remains constant then contracting either vessel reduces blood flow as it increases resistance. However if you constrict the efferent arteriole you are increasing the pressure difference between the two and filtration pressure increase.
What causes the renal tubules to reclaim sodium ions?
Aldosterone is a hormone that causes the renal tubules to reclaim sodium ions from the filtrate. In the ascending limb of the nephron loop the ________.
Why is the fatty tissue around the kidneys important?
Blood supply that directly receives substances from the tubular cells. collecting duct Site that drains the distal convoluted tubule. the fatty tissue surrounding the kidneys is important because it ___ stabilizes the position of the kidneys by holding them in their normal position
Where is the countercurrent multiplier located in the kidneys?
T or F -In the kidneys, the countercurrent mechanism involves the interaction between the flow of filtrate through the loop of Henle of thejuxtamedullary nephrons (the countercurrent multiplier) and the flow ofblood through the limbs of adjacent blood vessels (the countercurrentexchanger).
How is urine transported from the kidney to the urinary bladder?
T or F-The ureter transports urine from the kidney to the urinary bladder. T or FWater re absorption through the proximal convoluted tubule is termed obligatory water reabsorption, whereas water reabsorption through the distal convoluted tubule is termed facultative water reabsorption.