Vasopressin (ADH) a) Enhance facultative reabsorption of water b) Decreases reabsorption of water c) Increases excretion of calcium d) Decreases excretion of calcium
Q: Describe the cellular mechanism that allow for reabsorption and/or secretion in the proximal…
A: Tubular reabsorption is defined as the process that moves solutes along with water out of the…
Q: Explain Basic Renal Processes for Sodium and Water?
A: The kidney filters the blood and then removes the impurities from the blood. The urine formation is…
Q: What is the major function of Distal tubule and cortical collecting ducts?
A: Distal tubule: It is a part of excretory system, which is located in nephron segment on downstream.…
Q: How does the composition of the glomerular filtrate compare with that of plasma?
A: Blood plasma contains red and white blood cells, blood proteins, glucose, water, nitrogenous wastes,…
Q: How does ADH regulate facultative water reabsorption?
A: The resorption of water within the earlier elements of the nephron (regardless of an individual's…
Q: What adaptations do tubule cells have for reabsorption?
A: The excretory framework is a uninvolved natural framework that eliminates overabundance, pointless…
Q: If less ADH is produced in the kidneys, what happens to the amount of water reabsorbed by the blood?
A: ADH is also known as vasopressin, ADH is released from the posterior pituitary and plays the main…
Q: Explain Reabsorption by Mediated Transport?
A: Plants contain two different types of “Transport tissue”. They are named Xylem and Phloem. The…
Q: Which of the following is not reabsorbed at al?
A: The process by which the nephron eliminates water and solutes from the tubular fluid (pre-urine) and…
Q: what is a feature of glomerulus that contributes to its high efficiency in reabsorption?
A: A human kidney contains about one million of thin, long much convoluted tubular units called…
Q: What chemical substances normally are present in urine?
A: Normal human urine is formed of water (nearly 96%), organic wastes (2.5%), inorganic salts (1.5%),…
Q: If a substance in the blood is filtered, and not all of it is completely reabsorbed back into the…
A: During the excretion process, the nitrogenous wastes are removed by the filtration process of…
Q: Which substances in the blood are never filtered out into the urine?
A: Urine composed of salts, toxins, and water which are needed to be filtered out of the blood.Blood…
Q: To what extent do kidney mass and filtration rate decrease with age?
A: The excretory framework is a latent natural framework that eliminates abundance, pointless materials…
Q: What are the benefits of excreting nitrogenous wastes in the form of uric acid? in the form of urea?
A: Uric acid can be defined as a waste byproduct. It is formed when our body breaks down the purines,…
Q: kidneys in human beings are used for which purpose?
A: The bean-shaped organ in the renal system is kidneys. The kidneys are present in the retroperitoneal…
Q: What factors regulate the quantities filtered, reabsorbed, orsecreted?
A: Filtration, reabsorption and secretion are associated with the excretory system and can be seen when…
Q: explain the role of ADH in water reabsorption?
A: Hormones are chemical messengers and help in the growth and development of organisms. The different…
Q: What role does urea have in tubular reabsorption?
A: Tubular reabsorption is the movement of substances from filtrate into the blood. Substances are…
Q: what is the role of ADH in water reabsorption?
A: Antidiuretic hormone (ADH), commonly known as vasopressin, is a small peptide hormone which…
Q: What are some examples of drugs and bioactive substances eliminated in the urine?
A: Excretion is the process of removal of the waste product of the body, and the functional organ for…
Q: What are the major structures comprising the filtration membrane?
A: Answer: Introduction: The filtration membrane means a piece of permeable substance among the…
Q: Explain the Reabsorption of Salt ?
A: Salt reabsorption can be defined as the process in which sodium ions and chloride ions are…
Q: Explain the Forces involved in glomerular filtration?
A: the factors which affect glomerular filtration: Both glomerular capillary hydrostatic pressure and…
Q: What is obligatory water reabsorption?
A: Answer: Introduction: Reabsorption of water occur in the DCT- distal convoluted tubule and…
Q: Describe the histological structure of the proximal tubule, nephron loop, distal tubule, and…
A: The nephron is the functional unit of the kidney it consists of tubules and associated small blood…
Q: What happens to glomeruli as a person ages?
A: Like the other organs, kidneys are also susceptible to age-related changes. Restricting the blood…
Q: reabsorption of water by the proximal convoluted tubule, distal convoluted tubule and collecting…
A: Tubular reabsorption: Most of that fluid and its contents that passes through the nephrons of the…
Q: Where is the most water reabsorbed?
A: Urinary system eliminates the waste in the body through urine formation. Urine contains undesired…
Q: Explain the three basic components of renal function?
A: the three-basic components of the renal system is glomerular filtration, tubular reabsorption, and…
Q: Define the term pressure natriuresis?
A: Natriuresis and diuresis occur with a reduction of pressure following intravenous infusion of ANP in…
Q: What is the relationship between increased pressure and filtration?
A: Filtration is the movement of substances through a filter or filtering membrane.
Q: List the Renal Mechanisms?
A: Excretion is the process through which the body’s metabolic wastes are removed. The vertebrates…
Q: What are examples of wastes that may be present in urine?
A: Answer- Our body eliminates the nitrogenous waste in the form of urine by our kindneys.
Q: Is it accurate to describe the mucosa of the ureter as star shaped?
A: The ureter is a tube that carries urine from the kidney to the urinary bladder. There are two…
Q: What is the role of the kidneys in the body?
A: Kidneys are pair of bean-shaped organs which are present on each side of the spine and is located…
Q: What is the role of glomerulus in kidney?
A: The kidney is the bean shaped organ of about four to five inches present on the either side of the…
Q: What is the purpose of measuring the glomerular filtration rate?
A: The glomerular filtration rate is the rate of flow of filtered fluid from the glomerulus into the…
Q: В X.S. Indicate the type of nephridium shown in the figure above_ Name the labeled structures A…
A: nephridium are function similarly to a vertebrate kidney it is present is non chordates such as…
Q: How does renal function change across the life span?
A: In medical terminology Renal means kidney. There are two Kidney Present in the human body. the…
Q: How does the composition of urine help to maintain a healthy physiological acid-base balance?
A: Kidneys are the primary organs of excretion, particularly nitrogenous wastes. They are also organs…
Q: How is the permeability of the distal convoluted tubule and the collecting tubule controlled for…
A: The nephrons of the kidney includes proximal convoluted tubule, loop of Henle, distal convoluted…
Q: Describe Diuretic therapy?
A: Diuretics: a. A diuretic is any substance that promotes diuresis which is the increased production…
Q: What are the physiological implications of excreting waste nitrogen in the form of urate, urea, or…
A: Nitrogenous waste is excreted in different forms with the help of different species. This will…
Q: how is glucose reabsorbed in the proximal tubule?
A: The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are…
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- Alcohol acts as a diuretic A) By inhibiting the release of antidiuretic hormone B) By inhibiting sodium ion reabsorption C) By inhibiting sodium ion movement in the loop of Henle D) By carrying water out of the glomerulus E) By pure serum dilutionIf the Tm for a particular amino acid is 220 mg/100 ml and the concentration of that amino acid in the blood is 130 mg/100 ml, the amino acid will ________. A) not appear in the urine because it is too large to be filtered B) be actively secreted into the filtrate C) be completely reabsorbed by the tubule cellsCaffeine acts as a diuretic A) By inhibiting tubular sodium ion reabsorption B) By inhibiting the release of antidiuretic hormone C) By carrying water out of the glomerulus D) By inhibiting sodium ion movement in the loop of Henle E) By pure serum dilution
- Which of the following is false about water reabsorption at the kidneys: a). Water is actively pumped from the tubules into the bloodb). A concentration gradient of sodium must be established to move Water c). The loops of Henie allow for water reabsorption d). Water moves through aquaporinsThe proximal convoluted tubule: A) Functions in reabsorption and secretion and functions both actively and passively B) Functions only in reabsorption C) Functions solely passively D) Functions only in secretion E) Functions solely actively3) Which of the following best describes the action of a loop diuretic? A) Inhibits potassium reabsorption in the distal tubule B) Inhibits sodium reabsorption in the proximal tubule C) Inhibits sodium reabsorption in the loop of Henle D) Inhibits water secretion in the loop of Henle
- Decreased renal blood flow Sympathetic input Angiotensinogen Increased effective blood volume to correct initial stimulus to the system Increased sodium and water reabsorption by nephron collecting duct Renin released by juxtaglomerular cells of nephron cleaves angiotensinogen A) decreased renal blood flow B) increased renal blood flow C) sympathetic input D) angiotensin II negative feedback Stimulating variables: Nitric oxide from macula densa E) increased blood volume CAMP Diuretics Epinephrine Norepinephrine Early part of day Erect posture Hyponatremia Hyperkalem Fig. 17-17. The Feedback Mechanisms Regulating Aldosterone Secretion CAMP Cyclic adenosine monophosphate; ACTH, adrenocorticotropic hormone Copyright ©2008 by Mosby, Inc., an affliate of Elsevier Inc. (-) Angiotensin I TAldosterone levels Inhibiting variables: Adenosine from macula densa Angiotensin II Adrenergic blocking agents Aldosterone Angiotensin I-converting enzyme in lung Recumbent posture Later part of day P ACTH…When blood starts to become too acidic, the kidneys respond by a.) decreasing filtration rate and increasing reabsorption of both bicarbonate ions and H+. b.) synthesizing and reabsorbing H+ while filtering bicarbonate ions. c.) synthesizing and secreting bicarbonate ions while reabsorbing H+. d.) synthesizing and reabsorbing bicarbonate ions while secreting H+. e.) increasing filtration rate and increasing reabsorption of H+.Low sodium at the macula densa will cause what effect? a) the macula densa cells to release aldosterone b) constriction of the afferent arteriole to increase glomerular filtration rate c) the juxtaglomerular cells to release renin into the blood stream d) ACE to convert Angiotensin I to Angiotensin II and cause vasodilation
- For glucose to be reabsorbed from the tubule lumen, it is transported into the tubule cell by means of A) Na+/glucose antiporter. B) Na+/glucose symporter. 977 C) glucose protein channel. D) glucose uniporter.Renin is released from the JG apparatus in response to A) low blood pressure or decreased NaCI in the fluid within the distal convoluted tubule. B) high blood pressure or increased NaCI in the fluid within the distal convoluted tubule. C) high blood pressure or decreased NaCI in the fluid within the distal convoluted tubule. D) low blood pressure or increased NaCI in the fluid within the distal convoluted tubule.ADH controls .... a) Na + pumps in proximal tubules b) Water permeability in distal tubules and collecting duct c) Na + pumps and vasa recta d) The water permeability in Henle's sling