Question

Identify the correct path of urine in the human body.
(a) Kidney → urinary bladder → urethra → ureter
(b) Urinary bladder → ureter → kidney → urethra
(c) Kidney → ureter → urethra → urinary bladder
(d) Kidney → ureter → urinary bladder → urethra

Answer 1

Answer:

Kidney → ureter → urinary bladder → urethra

Explanation:

Just as CO2 is removed from the blood in the lungs, nitrogenous waste such as urea or uric acid are removed from blood in the kidneys. The urine forming in each kidney eventually enters a long tube, the ureter, which connects the kidneys with the urinary bladder. Urine is stored in the urinary bladderuntil the pressure of the expanded bladder leads to the urge to pass it out through the urethra.

Answer 2

Answer:

(d) Kidney → ureter → urinary bladder → urethra

Explanation:

Ureter:

• The ureter is a pair of thin muscular tubes that originate out of each kidney and extend from the renal pelvis.
• It transports urine from the kidneys to the bladder.

Urinary bladder:

• It's a muscular structure that retains urine in a sac-like form. Micturition, or urinating, is the process through which the urine bladder is emptied.

Urethra:

• This tube originates in the urinary bladder and aids in the removal of urine from the body.
• It serves as a common pathway for sperm and urine in males. Sphincter muscles protect the opening.

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