A&P Review 3 Part 4

25 July 2022
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Major calyces are?
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large branches of the renal pelvis.
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The region known as the macula densa is part of?
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the distal convoluted tubule.
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The cells of the macula densa, the juxtaglomerular cells, and the extraglomerular mesangial cells form the?
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juxtaglomerular complex
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The different arteriole of a nephron divides to form a network of capillaries within the cortex called the _____.
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peritubular
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Eighty percent of nephrons in the human kidney are located in the _____ and have short nephron loops.
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cortex
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Nephrons located close to the medulla with long nephron loops are called ____ nephrons.
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juxtamedullary
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Which of the following components of the nephron is largely confined to the renal medulla.
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collecting ducts
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Each kidney has about _____ nephrons.
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1.25 million
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The majority of renal innervation is by the?
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sympathetic nervous system
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Which of the following substances should not be filtered?
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proteins
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The process of filtration is driven mainly by?
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blood hydrostatic pressure
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Blood colloid osmotic pressure (BCOP) in the glomerulus is generated by?
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presence of albumin proteins in blood plasma
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Sympathetic stimulation of the kidney can do all of the following except?
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increase the glomerular filtration rate.
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The amount of filtrate produced by the kidneys each minute is called the?
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glomerular filtration rate
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Immediate local responses of the kidney to changes in blood flow to maintain GFR occur via?
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autoregulation
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Damage to the glomerular filtration membrane allowing proteins into the capsular space would result in all of the following except?
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a decrease in capsular hydrostatic pressure
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Secretion of hydrogen ion by the PCT is by the process of?
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countertransport
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The _____ is the plasma concentration at which a specific coumpound will begin appearing in the urine.
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renal threshold
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The majority of cotransporters and countertransposters are linked to the reabsorption of what ion?
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sodium
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Prolonged aldosterone stimulation of the distal convoluted tubule may result in?
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hypokalemia
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The ______ test is often used to estimate the glomerular filtration rate.
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creatinine clearance
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A patient excretes a large volume of very dilute urine on a continuin basis. This is may be due to?
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absence of ADH
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Antidiuretic hormone
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increases the permeability of the collecting ducts to water
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You complain to the doctor about constant pain and discomfort in the low back area. What test might logically be recommended.
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a pyelogram
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The pontine storage center controls micturition by?
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increasing contraction of the external urethral sphincter and reducing detrusor muscle activity.