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Q.171 Zoology ⭐ 360° Option Elimination Active
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NEET 2024 Zoology Question 171 Solution

Topic: Human Reproduction · Official NTA Booklet Code T1
NEET 2024 Zoology Question 171: Anatomy of the Fallopian Tube (Oviduct) vs Uterus

Question

Which of the following is not a component of Fallopian tube?

  1. (1)Infundibulum
  2. (2)Ampulla
  3. (3)Uterine fundus
  4. (4)Isthmus
✓
Verified Against NTA Final Answer Key
Option (3) : Uterine fundus
📚 Human Reproduction Easy
📋 Given Parameters & Problem Setup
Organ Fallopian tube (Oviduct)
Question Which of the following is NOT a component of Fallopian tube
⚡

The 30-Second Exam Hall Shortcut: ⚡ Oviduct Tripartite Structure

⏱️ Save ~15 seconds

The Fallopian tube consists of three parts: Infundibulum, Ampulla, and Isthmus! Uterine fundus is the dome-shaped upper part of the UTERUS, not the Fallopian tube!

1 Recall components of the Fallopian tube (10-12 cm long):
2 Infundibulum: Funnel-shaped part closer to ovary with fimbriae.
3 Ampulla: Wider middle portion where fertilization typically occurs.
4 Isthmus: Narrow terminal part connecting to uterus.
5 Uterine fundus is a distinct anatomical region of the uterus.
6 Select Option (3) / C.
🛡️
Why You Can 100% Trust This Shortcut: NCERT Biology · Human Reproduction (The Female Reproductive System)
📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Review Fallopian Tube Anatomy

Each fallopian tube (oviduct) is about 10-12 cm long and extends from the periphery of each ovary to the uterus. The part closer to the ovary is the funnel-shaped infundibulum. The edges of the infundibulum possess finger-like projections called fimbriae. The infundibulum leads to a wider part of the oviduct called ampulla. The last part of the oviduct, isthmus, has a narrow lumen and it joins the uterus.

Step 2

Identify Uterine Regions

The uterus is hollow, pear-shaped and consists of three anatomical regions: fundus (upper dome-shaped region), body/corpus (main central portion), and cervix (lower narrow canal opening into vagina).

Step 3

Conclude Non-Component

Uterine fundus belongs to the uterus, not the fallopian tube.

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan
1 (1)
✗ Incorrect
Verdict & Scientific Reason:

Infundibulum is the proximal funnel-shaped segment of the fallopian tube.

⚠️
Student Fallacy (Why candidates pick this trap): Infundibulum is the proximal funnel-shaped segment of the fallopian tube.
2 (2)
✗ Incorrect
Verdict & Scientific Reason:

Ampulla is the wide middle segment of the fallopian tube.

⚠️
Student Fallacy (Why candidates pick this trap): Ampulla is the wide middle segment of the fallopian tube.
3 (3)
✓ 100% Correct
Verdict & Scientific Reason:

Uterine fundus is part of the uterus, not a component of the fallopian tube.

💡
Why this is airtight: None.
4 (4)
✗ Incorrect
Verdict & Scientific Reason:

Isthmus is the narrow distal segment of the fallopian tube joining the uterine cavity.

⚠️
Student Fallacy (Why candidates pick this trap): Isthmus is the narrow distal segment of the fallopian tube joining the uterine cavity.
⚠️

NTA Trap Alert: Isthmus Location Overlap

Thinking isthmus belongs only to the thyroid or uterus.

🛡️ How to avoid the -1 mark: The fallopian tube ends in the isthmus; uterine fundus is entirely separate.
📖

Core NEET Syllabus Standard

Biology Core Zoology · Human Reproduction Standard Benchmark
Core Scientific Principle Tested:

"Each fallopian tube is about 10-12 cm long... The part closer to the ovary is the funnel-shaped infundibulum... leads to a wider part called ampulla. The last part of the oviduct, isthmus has a narrow lumen and it joins the uterus."

Syllabus Focus: Anatomy of the Fallopian Tube (Oviduct) vs Uterus
✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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