Exam 14: The Urinary System

Plasma proteins are normally filtered in the nephron.

Vasa recta are associated with

When arterial blood pressure is elevated above normal, which of the following compensatory changes in renal function occur as a result of the baroreceptor reflex?

The _________________ center is located in the lowest region of the spinal cord and is solely responsible for events leading to emptying the bladder in infants.

Which part of the juxtamedullary nephron is responsible for establishing the vertical osmotic gradient in the medulla of the kidney?

Urine passes through the pelvic diaphragm and then through the internal urethral sphincter before entering the urethra.

The liver converts many foreign organic compounds into ionic form that can be secreted by the organic ion secretory system.

Match the renal structure or activity with the correct characteristic. a.Collecting tubules empty into this structure b.Stores the urine c.Passage of substances from the peritubular capillaries into the tubular lumen d.Carries blood to the glomerulus e.Tuft of capillaries that forms the filtrate f.Passage of protein-free plasma into Bowman's capsule g.Urine is forced through this structure by peristalsis h.Collects the glomerular filtrate i.Passage of substances from the tubular lumen into the peritubular capillaries j.Functional unit of the kidney k.Supplies the renal tissue with O₂ and nutrients l.Carries blood from one capillary network to another capillary network m.Tube through which urine leaves the body n.Variable water and sodium reabsorption occur here under hormonal control o.Responsible for the vertical osmotic gradient in the medulla of the kidney p.Glucose and amino acid reabsorption occur here -Peritubular capillary

Match the urinary system feature with the correct characteristic. a.urea b.creatinine c.uric acid d.Na+ e.glucose -Reabsorbed actively and passively

Glucose is not normally found in the urine because it is

Match the chemicals below with the correct characteristic. a.renin b.angiotensinogen c.angiotensin I d.angiotensin II e.aldosterone f.atrial natriuretic peptide -Is produced by the liver

Afferent arteriole: Location ____________________ Function(s) ____________________

Match the correct statement about sodium reabsorption. a.Sodium reabsorption in the distal and collecting tubules b.Sodium reabsorption in the proximal tubule c.Sodium reabsorption coupled with chloride reabsorption in the loop of Henle -Is important in the regulation of ECF volume

Which substance is not secreted into the tubule?

The kidneys are the organs that are primarily responsible for maintaining constancy of the volume and electrolyte composition of the internal fluid environment.

Bowman's capsule Location ____________________ Function(s) ____________________

The ascending limb of the loop of Henle is where

If a substance has a plasma concentration of 150 mg/ml and a urine concentration of 1.7 mg/ml, and the urine flow rate is 1.3 ml/min, what is the clearance of this substance?

Indicate whether the first item in the statement increases, decreases, or has no effect on the second item by filling in the appropriate letter using the following answer code. a.increases b.decreases c.has no effect on -Increased angiotensin II activation _____ aldosterone secretion.

Water reabsorption is under the control of vasopressin