Take full exam for free

The ___________ is not an organ of the urinary system.

A.

urethra

B.

ureter

C.

kidney

D.

urinary bladder

E.

Liver

Answer and Explanation

The Correct Answer is E

A. Urethra: The urethra is a part of the urinary system that carries urine from the urinary bladder to the outside of the body. 

 

B. Ureter: The ureters are tubes that carry urine from the kidneys to the urinary bladder. They are part of the urinary system.

 

C. Kidney: The kidneys are the primary organs of the urinary system responsible for filtering blood and producing urine. 

 

D. Urinary bladder: The urinary bladder is an organ in the urinary system that stores urine before it is excreted. 

 

E. Liver: The liver is not an organ of the urinary system. It plays a crucial role in metabolism, detoxification, and bile production, but it is part of the digestive system. 


View Related questions

Correct Answer is D

Explanation

A. Azotemia is a condition characterized by elevated levels of nitrogenous waste products in the blood, not a direct by-product of protein catabolism.

B. Creatinine is a by-product of muscle metabolism, not directly from protein catabolism.

C. Uric acid is a by-product of nucleic acid metabolism, not protein catabolism.

D. Urea is a primary by-product of protein catabolism, formed in the liver and excreted by the kidneys. This is the correct answer.

Correct Answer is B

Explanation

A. 20,000 to 30,000: This number is too high for the typical number of sperm that reach the vicinity of the egg.

B. 20 to 200: This number is within the range of the actual number of sperm that typically reach the vicinity of the egg.

C. Half: This is an exaggerated number, as far fewer than half of the ejaculated sperm reach the vicinity of the egg.

D. 2000 to 3000: This number is too high for the typical number of sperm that reach the vicinity of the egg.