Islets of Langerhans are concentrated in which portion of Pancreas?

Appeared in: JIPMER Nursing Officer-2017

Explanation

The pancreas is divided into the head, neck, body, and tail.
The Islets of Langerhans are clusters of endocrine cells responsible for secreting hormones like insulin and glucagon.
Anatomical studies show that while islets are distributed throughout the pancreas, they are most numerous and densely concentrated in the tail region.
The tail is the narrow, left-most portion of the pancreas that extends towards the spleen.

Option A: The head of the pancreas contains Islets of Langerhans, but at a lower concentration compared to the tail.
Option B: The body of the pancreas contains Islets of Langerhans, but their density is less than that found in the tail.
Option D: The uncinate process is a projection from the head of the pancreas. Like the head, it contains islets but not in the highest concentration.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy and physiology of the pancreas, specifically the distribution of endocrine cells (Islets of Langerhans) as background academic context rather than a clinical decision trigger.
A key nursing consideration for patients undergoing distal pancreatectomy (removal of the body and tail) is the high risk of postoperative endocrine insufficiency, specifically diabetes mellitus.
Nurses must monitor blood glucose levels closely in these patients and be prepared to administer insulin as ordered.
Patient education is crucial, covering signs of hyperglycemia and the potential long-term need for diabetes management.

How to Approach the Question

First, identify the core of the question: it's asking about the specific location ('which portion') of the highest 'concentration' of a particular structure ('Islets of Langerhans') within an organ ('Pancreas').
This is a factual recall question based on anatomy.
Mentally picture the pancreas and its divisions: head, body, and tail.
Recall the distribution of the endocrine cells (Islets) within these divisions.
Eliminate the options that contain islets but are not the site of the highest density.
Select the option that corresponds to the anatomical region with the most significant number of Islets of Langerhans.

Concept Tested & Keywords

Concept Tested: Anatomy and physiology of the pancreas, specifically the distribution of endocrine cells (Islets of Langerhans).
Stem keywords: Islets of Langerhans, concentrated, Pancreas
Lead-in keywords: which portion

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E6 Anatomy BDChaurasia V2 10e Part 2 pp. 80-82, 77-79

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