Question

Match List I with List II 

Choose the correct answer from the options given below: 
 

• A. A - III, B - I, C - II, D - IV
• B. A - II, B - III, C - I, D - IV
• C. A - IV, B - I, C - II, D - III
• D. A - III, B - I, C - IV, D - II

Hint:

Connecting Hassall's corpuscles with the thymus and white pulp with the spleen is a fast way to immediately eliminate incorrect combinations in matching questions.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
This question evaluates histological structures and characteristics unique to specific endocrine, lymphoid, and accessory glands in domestic animals.

Step 2: Detailed Explanation:
Let us match the histological structures to their respective organs:
- A. Hassall's corpuscles (thymic corpuscles): Concentric arrangements of eosinophilic epithelial cells located specifically in the medulla of the thymus. This matches with III.
- B. White pulp: Lymphoid tissue surrounding central arterioles within the spleen, containing T-cell and B-cell zones. This matches with I.
- C. Corpora amylacea: Prostatic concretions of calcified glycoprotein debris found within the secretory alveoli of the prostate gland, particularly in older animals. This matches with IV.
- D. Corpora arenacea (brain sand): Calcified structures found inside the pineal gland, which serve as useful radiographic landmarks. This matches with II.
Therefore, the correct match is A - III, B - I, C - IV, D - II.

Step 3: Final Answer
The correct option is (D).