RE-NEET 2024 Zoology Mammary Glands MCQ Question
Arrange the following parts in human Mammary gland, traversing the route of milk ejection.
A. Mammary duct
B. Lactiferous duct
C. Mammary alveolus
D. Ampulla
E. Mammary tubule Choose the correct answer from the options given below:
D → C → E → A → B
C → E → B → A → D
C → E → A → D → B
A → C → E → D → B
Correct Answer
Detailed Explanation
Chapter: Human Reproduction
Class: 12 Biology — Chapter 3 Topic: Mammary Glands Difficulty: 🟡 Medium
✅ Ans: C → E → A → D → B
Mammary alveolus → Mammary tubule → Mammary duct → Ampulla → Lactiferous duct
🔍 Explanation
- C. Mammary alveolus: Milk is secreted by the alveolar cells.
- E. Mammary tubule: Small tubules carry milk away from the alveoli.
- A. Mammary duct: Tubules join to form mammary ducts.
- D. Ampulla: Mammary ducts enlarge to form an ampulla, which acts as a temporary milk reservoir.
- B. Lactiferous duct: The ampulla opens into the lactiferous duct, through which milk is released through the nipple.
📌 NCERT: Each mammary gland consists of 15–20 mammary lobes, and each lobe contains clusters of alveoli. The alveoli open into mammary tubules, which join to form mammary ducts; these expand into ampullae and open into lactiferous ducts.
🧠 NEET Trick: A → T → D → A → L Alveolus → Tubule → Duct → Ampulla → Lactiferous duct.
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