Large intestine has all parts except

RRB Staff Nurse Ahmedabad-2015

Applied Anatomy

Easy

Appeared in: RRB Staff Nurse Ahmedabad-2015

Explanation

The jejunum is the middle segment of the small intestine, situated between the duodenum and the ileum.
Its primary function is the absorption of most nutrients, including carbohydrates, proteins, and fats, from digested food.
The large intestine is anatomically and functionally distinct, comprising the cecum, colon, rectum, and anal canal, and is mainly involved in water absorption and feces formation.

Option A: The caecum is the first part of the large intestine, a pouch that connects the small intestine (ileum) to the colon.
Option B: The sigmoid colon is the S-shaped, terminal part of the colon that links the descending colon to the rectum.
Option C: The ascending colon is the first of the four sections of the colon, traveling upwards from the caecum on the right side of the abdomen.

Visual 1: Diagram - An annotated diagram of the entire gastrointestinal tract, clearly labeling the small intestine (duodenum, jejunum, ileum) and the large intestine (cecum, ascending, transverse, descending, sigmoid colon, rectum, anal canal). This helps visualize the location and relationship of each part.

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.
Understanding the distinct anatomy of the bowel is crucial for patient assessment, as the location of abdominal pain can indicate the affected segment (e.g., right lower quadrant pain may involve the cecum/appendix).
This knowledge is vital for interpreting diagnostic procedures like colonoscopy (which visualizes the large intestine) and for understanding conditions like malabsorption syndromes, which often involve the small intestine.
What if? - If the question asked for a part of the small intestine that connects directly to the stomach, the answer would be the duodenum, the first and shortest section of the small intestine.

How to Approach the Question

First, identify the core subject of the question, which is the anatomy of the gastrointestinal (GI) tract.
Note the keyword 'EXCEPT'. This signals that three of the options are correct parts of the large intestine, and your task is to find the one that is not.
Mentally recall or list the major components of the large intestine: cecum, colon (which includes ascending, transverse, descending, and sigmoid sections), rectum, and anal canal.
Systematically evaluate each option against your recalled list.
Option A (Caecum), B (Sigmoid colon), and C (Ascending colon) are all parts of the large intestine.
Option D (Jejunum) is not on the list of large intestine parts; it is a part of the small intestine.

Concept Tested & Keywords

Concept Tested: Anatomy of the large and small intestines.
Stem keywords: Large intestine, parts
Lead-in keywords: except
Negative lead-in flag: The question uses negative framing ('EXCEPT'), requiring you to identify the option that does not belong.

Q_OggcWpwQXVxQyyf8i1sW