What is the basic functional and structural filtration unit of the human kidney?
Answer and explanation
Correct answer: C. Nephron
- Step 1: Examine renal physiology: Each kidney contains approximately one million microscopic filtering structures.
- Step 2: The nephron consists of a renal corpuscle (Bowman's capsule and glomerulus) and a renal tubule, responsible for glomerular filtration, selective reabsorption, and tubular secretion.
Answer
Nephron.
Why not the others: 'Alveolus' is the respiratory unit of the lung; 'Neuron' is the functional cell of the nervous system; 'Ureter' is the macroscopic muscular tube carrying urine to the bladder.
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