Chapter 26.1-26.3

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

What is the hormone produced by the kidneys that helps regulate Ca2+ levels in the blood?

Calcitriol

What parts of the kidney make up the juxtaglomerular complex (JGC)?

Distal convoluted tubule and afferent arteriole

In which of the basic processes involved in urine formation does blood pressure force water and solutes across the wall of the glomerular capillaries?

Filtration

Which of the following parts of the nephron has two limbs with thick segments and thin segments?

Nephron loop

What are the cells that surround the glomerular capillaries and limit filtration?

Podocytes

What is the process that can return useful solutes like electrolytes and glucose to the blood?

Reabsorption

Regulation of blood volume is an important function of the urinary system. Which of the following is NOT involved with the regulation of blood volume?

Regulation of glucose levels

Which of the following brings oxygenated blood into the kidney?

Renal artery

When plasma glucose concentrations are higher than the renal threshold, glucose concentrations in the filtrate exceed the transport maximum (Tm), and __________.

glucose appears in the urine

Blood supply to the proximal and distal convoluted tubules of the nephron is provided by the __________.

peritubular capillaries

In a nephron, the long tubular passageway through which the filtrate passes includes the __________.

proximal and distal convoluted tubules and the nephron loop

Sixty to 70 percent of the water in the body is reabsorbed in the __________.

proximal convoluted tubule

Which of the following is NOT a function of the urinary system?

Adaptive immunity

What are the blood vessels found in the renal corpuscle that produce filtrate?

Glomerulus

Which of the following is NOT a waste product normally found in urine?

Glucose

Which of the following is NOT a function of the urinary system?

Introduction of plasma proteins into blood plasma

Which organ in the urinary system produces urine?

Kidney

What are the cells found between adjacent glomerular capillaries that can change the diameter of the capillaries and adjust blood flow?

Mesangial cells

Which of the following is a dense, fibrous layer that anchors the kidney to surrounding structures?

Renal fascia

In what part of the kidney are the renal pyramids located?

Renal medulla

What is the expanded, funnel-shaped structure in the kidney that leads to the ureter?

Renal pelvis

Which part of the kidney functions as an endocrine organ to produce erythropoietin and the enzyme, renin?

The juxtaglomerular complex

Which of the following organic wastes is generated by the catabolism of amino acids?

Urea

Which part of the urinary system in the male is shared with the reproductive system?

Urethra

Which organ in the urinary system temporarily stores urine?

Urinary bladder


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