Lab 9 renal system physiology

Upon successful completion of this course, students will:

Lab 9 renal system physiology

If all other variables are kept constant, how does the afferent arteriole radius affect the rate of Lab 9 renal system physiology filtration select all that apply?

An increased afferent arteriole radius will increase the rate of glomerular filtration. A decreased afferent arteriole radius will decrease the rate of glomerular filtration. If all other variables are kept constant, how does the efferent arteriole radius affect the rate of glomerular filtration select all that apply?

A decreased efferent arteriole radius will decrease the rate of glomerular filtration. An increased efferent arteriole radius will decrease the rate of glomerular filtration. A decreased efferent arteriole radius will increase the rate of glomerular filtration.

If all other variables are kept constant, how does blood pressure affect the rate of glomerular filtration select all that apply? If blood pressure goes down, the rate of glomerular filtration goes up. If blood pressure goes up, the rate of glomerular filtration goes up.

If blood pressure goes down, the rate of glomerular filtration goes down. In the absence of other renal processes including tubular reabsorption and secretionmore glomerular filtration leads to a larger urine volume. What will happen to the glomerular capillary pressure rate and glomerular filtration rate if both of these arteriole radii changes are implemented simultaneously with the low blood pressure condition?

Glomerular filtration rate and pressure will rise above baseline values. If blood pressure were to drop for example, as the result of blood losswhat changes in the nephron would allow the kidney to maintain ts normal glomerular filtration rate select all that apply?

Comparing the glomerular filtration rate and glomerular capillary pressure with the baseline values from the first runhow effective was the increased afferent arteriole radius in compensating for the low blood pressure?

The afferent arteriole dilation improved the low glomerular capillary pressure and filtration rate marginally. The afferent arteriole dilation returned the low glomerular capillary pressure and filtration rate almost to baseline values. Comparing the glomerular filtration rate and glomerular capillary pressure with the baseline values from the first runhow effective was the decreased efferent arteriole radius in compensating for the low blood pressure?

The efferent arteriole constriction improved the low glomerular capillary pressure and filtration rate marginally.

Lab 9 renal system physiology

If all other variables are kept constant, when blood pressure decreases, glomerular filtration Your answer: If afferent arteriole radius decreases in response to an increase in blood pressure, then glomerular filtration Your answer: If all other variables are kept constant, when the efferent arteriole radius decreases, glomerular filtration Your answer: With blood pressure held at a constant value, which of the following combinations will raise the glomerular filtration rate above baseline values?

List the several mechanisms you have explored that change the glomerular filtration rate. How does each mechanism specifically alter the glomerular filtration rate?

Renal mechanisms have effects on water excretion. GFR is large compared to the amount of urine produced. Most water in the filtrate because of renal processes and independent of ADH action 2. Describe and explain what happened to the glomerular capillary pressure and glomerular filtration rate when both arteriole radii changes were implemented simultaneously with the low blood pressure condition.

How well did the results compare with your prediction? The simultaneously implementation of both arteriole rates changing caused glomerular filtration rate and low blood pressure conditions went above the baseline value.

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How could you adjust the afferent or efferent radius to compensate for the effect of reduced blood pressure on the glomerular filtration rate? You can co nstrict or dilate them. Which arteriole radius adjustment was more effective at compensating for the effect of low blood pressure on the glomerular filtration rate?

Explain why you think this difference occurs. There was a greater increase of glomerular pressure when afferent radius is increased rather than the decrease of the efferent radius.

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In the body, how does a nephron maintain a near-constant glomerular filtration rate despite a constantly fluctuating blood pressure?Lab 11 - Renal Physiology In this lab, we will again make use of the most convenient experimental animals to examine renal responses to the intake of various solutions.

Changes in urine composition will be analyzed in humans after the consumption of pure water, mOsm salt water, and an alkaline solution. Human Anatomy & Physiology: Urinary System; Ziser Lecture Notes, 1 The U rinary System Urine production and elim ination are one of the m ost im portant m echanism s of body hom eostasis all body system s are directly or indirectly affected by kidney function eg.

composition of blood is determined more by kidney function. Exercise 9: Renal System Physiology: Activity 3: Renal Response to Altered Blood Pressure Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly.

EXERCISE 9: RENAL SYSTEM PHYSIOLOGY ACTIVITY 1: The Effect of Arteriole Radius on Glomerular Filtration Answers 1.

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According to your lab manual, in humans the glomerular filtration rate (GFR) ranges from _____ to _____ ml/minute. 80 2. Exercise 9: Renal System Physiology: Activity 1: The Effect of Arteriole Radius on Glomerular Filtration Lab Report Pre-lab Quiz Results You scored % by answering 5 out of 5 questions correctly.

1.

Lab 9 renal system physiology

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