Which is NOT a component of nephron?

Appeared in: UP NHM CHO 7 Sept 2022 (Shift-2)

Explanation

The renal column (or column of Bertin) is a macroscopic structure of the kidney, not a microscopic component of the nephron.
It is an extension of the renal cortex that provides a supportive framework for vessels that enter and exit the cortex.
The nephron is the microscopic functional unit, and the renal column is part of the kidney's larger organizational structure.

Option A: The renal tubule is a primary and essential component of the nephron, responsible for reabsorbing useful substances and secreting waste products.
Option B: The glomerulus is the capillary tuft where blood filtration begins. It is the first part of the nephron's renal corpuscle.
Option D: The Bowman's capsule is the double-walled epithelial sac that surrounds the glomerulus to collect the filtrate, forming the renal corpuscle along with the glomerulus.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the nephron and gross structure of the kidney as background academic context rather than a clinical decision trigger.
Understanding the distinction between the nephron's microscopic parts and the kidney's gross anatomy is fundamental for comprehending renal pathophysiology.
Diseases are often specific to parts of the nephron; for example, glomerulonephritis affects the glomeruli, while various diuretics target different segments of the renal tubule.
A nurse's understanding of nephron function is crucial for managing patients with kidney disease, administering medications like diuretics, and interpreting lab results related to renal function (e.g., creatinine clearance).

How to Approach the Question

First, identify the key term in the question: 'nephron'. Recall or define what a nephron is (the functional unit of the kidney).
Note the negative keyword 'NOT'. This means you are looking for the option that is an exception or does not fit with the others.
Evaluate each option: Is 'Renal tubule' part of a nephron? Yes. Is 'Glomerulus' part of a nephron? Yes. Is 'Bowman's capsule' part of a nephron? Yes.
Evaluate the final option: Is 'Renal column' part of a nephron? No, it's a larger structural part of the kidney itself.
By eliminating the known components of the nephron, the remaining option is the correct answer.

Concept Tested & Keywords

Concept Tested: Anatomy of the nephron and gross structure of the kidney.
Stem keywords: nephron, component
Lead-in keywords: NOT
Negative lead-in flag: The question uses a negative keyword 'NOT', requiring you to identify the option that doesn't belong to the group.

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E6 Nursing Brunner Adult Health 3SA Vol 2 Part 1 p. 122-124

E6 Physiology Ganong 27e Vol 2 Part 3 p. 122-124

Practise the full UP NHM CHO 7 Sept 2022 (Shift-2)

Attempt every question from this paper in a timed mock, then review the full solution for each one.