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Restate the question in your own words, predict the answer before checking the options, and confirm that the explanation and correct-option field both point to Duodenum.
Therefore option C, Duodenum, is factually consistent with the stem, the marked correct index, and the explanation.✅ Correct Answer: C — Duodenum The Duodenum is the first and shortest part of the small intestine that directly connects to the stomach. It receives partially digested food (chyme) from the stomach. Jejunum — Jejunum is the second part of the small intestine (middle segment), not connected to the stomach; it is where most nutrient absorption occurs. Ileum — Ileum is the third and longest part of small intestine; it connects to the large intestine at the ileocecal valve, not to stomach. Caecum — Caecum is the first part of the large intestine; not connected to the stomach at all. 📝 Important Note: Small intestine has 3 parts: Duodenum (1st, 25 cm), Jejunum (2nd, 2.5 m), Ileum (3rd, 3.5 m). Duodenum = 'twelve' in Latin (12 finger-breadths long = 25cm). Most digestion happens in duodenum; most absorption in jejunum and ileum.
FAQ
Common questions and clear answers for this topic.
The digestive, circulatory, nervous, and skeletal systems appear most frequently, along with sensory organs and basic endocrine functions.
Yes, the human body has 206 bones, and questions about the largest, smallest, and total bone count appear fairly often.
Questions usually cover blood group compatibility, the role of platelets in clotting, and basic facts about blood pressure and heart function.
No, most questions focus on what each organ does and why, rather than the detailed biochemical processes behind it.
Linking facts to real-life observations, like why pulse is checked at the wrist, makes them easier to recall than memorizing textbook lines.
