A&P 2025 Excretory/Urinary System Unit Test

Which of the following is NOT considered to be a process that eliminates metabolic waste products?

• a. lungs exhaling carbon dioxide

• b. elimination of solid wastes (feces) from the digestive system

• c. removal of nitrogenous wastes in urine

• d. excretion of urea in perspiration

What is primarily reabsorbed in the descending limb of the loop of Henle?

• NaCl

• H2O

• Bicarbonate

• Ammonium

How does the urine concentration of a dehydrated individual compare to that of a well-hydrated individual?

• More dilute

• Less concentrated

• More concentrated

• No difference

As urine is excreted, muscle contractions of the urinary bladder will cause the urine to pass into the

• ureter
• glomerulus
• urethra
• Bowman's capsule

Tube that carries urine from the kidney to the bladder

• Ureter

• Bladder

• Urine

• Urethra

What is the structure labeled # 1?

• renal cortex

• renal papilla

• renal capsule

• renal pyramid

What will be secreted into the nephron, specifically moving into the proximal tubule?

• H+ and ammonium ions

• Calcium and phosphate ions

• Sodium and potassium ions

• Bicarbonate and chloride ions

Name structure A

• Collecting duct

• Proximal convoluted tubule

• Distal convoluted tubule

• Glomerulus

After reabsorption and secretion in nephrons is completed, the fluid that is left in the tubules is transported to the

• Bowman's capsule
• circulatory system
• urinary bladder
• bile duct

What is another term for urination?

• Filtration

• Mastication

• Deglutition

• Micturition