Which of the following describes the glomerulus? i) It is composed of capillaries ii) It is surrounded by the Bowman's capsule iii) It promotes filtration of large molecules into the nephron as filtrate Oi only O ii only O i and ii only ii and iii only O i, ii, and ii

Under circumstances of having low blood pressure , how does the sympathetic nervous system decrease glomerular filtration rate ? stimulates constriction of the efferent arteriole only stimulates relaxation of the mesangial cells stimulates secretion of erythropoietin stimulates constriction of both the afferent and efferent arterioles

Fred was diagnosed 6 months ago with liver cancer.  His liver is no longer able to make the necessary amount of proteins needed by the body.  What effect, if any, would this have on the net glomerular filtration rate? (Hint, decide which of the 3 forces contributing to the net filtration rate is affected.  Then adjust numbers in the equation to determine if there is an increase, decrease, or no change to the net filtration rate).   Group of answer choices A) Blood colloid osmotic pressure would be decreased, increasing the net glomerular filtration rate. B) Blood colloid osmotic pressure would be decreased, decreasing the net glomerular filtration rate. C) Capsular hydrostatic pressure would be decreased, increasing the net glomerular filtration rate. D) Capsular hydrostatic pressure would be decreased, decreasing the net glomerular filtration rate. E) There would be no effect on the net glomerular filtration rate.

The process of hydrogen ion secretion in the proximal convoluted tubule occurs via which of the following mechanisms? Choose from the following: (A) hydrogen ions diffuse out of the glomerular filtrate of the proximal convoluted tubule, through extracellular fluid and into the peritubular blood (B) carbon dioxide diffuses into the proximal convoluted tubule cell from peritubular capillary blood; undergoes a chemical reaction to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ion diffuses into the glomerular filtrate of the proximal convoluted tubule (C) hydrogen ions diffuse out of the peritubular capillary blood, through extracellular fluid and into the filtrate of the proximal convoluted tubule (D) carbon dioxide diffuses into the proximal convoluted tubule cell from the glomerular filtrate; undergoes a chemical reacdtion to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ions diffuse into the peritubular blood

Which of the following statements is false regarding the filtration that takes place in the kidneys? a) About 20% of the total plasma volume is filtered into the lumen of Bowman's capsule. b) Glomerular filtration rate (GFR): indicates how fast blood plasma is filtered through the glomeruli of the kidney c) It is primarily the systemic blood pressure that determines how much urine you produce. d) The filtrate consists of water, smaller molecules and ions that can cross the filter barrier

Which of the following is not associated with the renal corpuscle? EQuestion options: a) glomerular capillåry b) fenestrated capillary d) peritubular capillary

The capsular hydrostatic pressure is generally increases in capsular hydrostatic pressure than the glomerular hydrostatic pressure; the formation of additional filtrate. A) larger; facilitate 970 B) smaller; facilitate C) smaller; impede D) larger; impede

Antidiuretic hormone (ADH) is produced in the pituitary gland and regulates the body's fluid volume and osmolality by affecting the number of active aquaporins (water channels) in the proximal tubules and the collecting duct. But what is it, above all, that drives the filtrate out of the tubules? a) Osmotic pressure formed depending on the composition of the filtrate b) Osmotic gradient in the medullary (kidney marrow) c) Hydrostatic pressure from the filtrate in tubules d) Blood pressure in the capillary

Changes in blood pressure ( MAP ) have the potential to alter glomerular filtration rate ( GFR ) by directly changing which of the following factors below ? glomerular capillary hydrostatic pressure Bowman's capsule hydrostatic pressure glomerular osmotic pressure Bowman's capsule osmotic pressure

Which of the following is, are function of the kidneys? a. Control plasma volume  b. Control blood pressure  c. Control red blood cell production  d. All of these