The region of the kidney that contains renal pyramids is:

Appeared in: NVS- 2025

Explanation

The kidney is divided into two main regions: the outer cortex and the inner medulla.
The renal medulla, the inner part of the kidney, is composed of 8-10 cone-shaped masses of tissue called the renal pyramids.
The base of each pyramid is at the border of the cortex and medulla, and its apex (papilla) projects into the renal pelvis to drain urine.

Option A: The renal pelvis is a funnel-shaped structure that collects urine from the calyces and directs it to the ureter. It does not contain the renal pyramids but rather receives urine from them via the papillae.
Option B: The renal sinus is the central cavity or space within the kidney. It contains the renal pelvis, calyces, blood vessels, nerves, and fat, but it is not the tissue region that comprises the pyramids.
Option C: The renal cortex is the outer layer of the kidney. It contains the glomeruli and the proximal and distal convoluted tubules, which are responsible for blood filtration. The pyramids are located internal to the cortex.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the kidney as background academic context rather than a clinical decision trigger.
Understanding the distinct regions of the kidney is fundamental for diagnosing and managing renal diseases. For example, diseases can preferentially affect one region over another.
Damage to the renal medulla, where the pyramids are located, can impair the kidney's ability to concentrate urine, leading to conditions like polyuria. This is seen in conditions like sickle cell nephropathy or analgesic nephropathy.
What if? If a patient has glomerulonephritis, the primary site of inflammation is the glomeruli. This would primarily affect the renal cortex, leading to symptoms like hematuria and proteinuria, rather than directly impacting the medullary pyramids' function of urine concentration.

How to Approach the Question

First, identify the key terms in the question: 'region of the kidney' and 'renal pyramids'.
This is a factual recall question based on basic anatomy.
Mentally picture or recall a diagram of a kidney's cross-section.
Visualize the main layers: the outer cortex and the inner medulla.
Remember that the medulla is composed of cone-shaped structures.
Associate the term 'renal pyramids' with the renal medulla to select the correct option.

Concept Tested & Keywords

QP5tPkIB6gYCRTq1d-e_Un

E6 Physiology Guyton 4SAE Part 2B p. 10-12

E6 Anatomy BDChaurasia V2 10e Part 2 pp. 98-100, 99-101

Practise the full NVS- 2025

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