Biology Digestion/Nutrition ETEA 2023
PMDC Verified Question 17 of 48
The first segment of the small intestine is:
A
Duodenum
B
Jejunum
C
Ileum
D
Colon
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Duodenum
Concept:

The small intestine is a long coiled tube anatomically divided into three distinct segments.

Formula:

N/A

Solution:

  • Immediately after the stomach's pyloric sphincter, the digestive tract enters a short, C-shaped tube.
  • This initial 25 cm segment is called the Duodenum.
  • It is the site where acidic chyme mixes with bile and pancreatic juices.


Why other options are incorrect:

The Jejunum is the second part, and the Ileum is the final, longest part. The Colon is part of the large intestine.

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