The large intestine has all parts, except?

Appeared in: RRB Staff Nurse Mumbai-2015

Explanation

The question requires identifying the option that is not a part of the large intestine.
The jejunum is the middle section of the small intestine, located between the duodenum and the ileum.
The primary function of the jejunum is the absorption of most carbohydrates, proteins, and fats from digested food.
The large intestine consists of the cecum, colon (ascending, transverse, descending, sigmoid), rectum, and anal canal.
Therefore, the jejunum is the correct answer as it is part of the small intestine, not the large intestine.

Option A: The caecum is the first part of the large intestine, a blind pouch located in the right iliac fossa where the small intestine opens.
Option B: The sigmoid colon is the S-shaped terminal part of the colon, which connects the descending colon to the rectum. It is a key part of the large intestine.
Option C: The ascending colon is a major part of the large intestine that travels up the right side of the abdomen, from the cecum to the transverse colon.

Visual 1: Diagram: A labeled illustration of the human digestive system, clearly differentiating the small intestine (duodenum, jejunum, ileum) from the large intestine (cecum, ascending, transverse, descending, and sigmoid colon, rectum).

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the large and small intestines as background academic context rather than a clinical decision trigger.
A nurse's understanding of intestinal anatomy is vital for accurately assessing abdominal pain, interpreting diagnostic findings, and managing patient care. For example, pain in the right lower quadrant could suggest appendicitis (near the cecum), while issues with the jejunum often lead to malabsorption and nutritional deficiencies.
What if? If a patient undergoes a surgical resection of the jejunum, the nurse's primary concern would be monitoring for malabsorption, vitamin deficiencies, and electrolyte imbalances. Conversely, if a patient has a colectomy (removal of the colon), the focus shifts to managing fluid balance and preventing dehydration, as the colon's primary role is water absorption.

How to Approach the Question

First, analyze the question to identify the core concept, which is the anatomy of the large intestine.
Pay close attention to the keyword 'except'. This indicates you need to find the option that does not fit with the others.
Review each option and mentally categorize it as part of either the small or large intestine.
Caecum, Sigmoid Colon, and Ascending Colon are all parts of the large intestine.
Jejunum is a part of the small intestine.
The outlier is the Jejunum, making it the correct answer to this 'except' question.

Concept Tested & Keywords

QAX42eQnMiHxYAEv3MTZ1F

Practise the full RRB Staff Nurse Mumbai-2015

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