Question

Match List I with List II 

 

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

Hint:

To solve this easily:
- "Ring womb" is the most famous maternal cause of dystocia in sheep/ewes (C-II).
- "Ferguson's reflex" is the classic oxytocin-driven positive feedback loop during active labor (D-I).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Veterinary obstetrics classifies maternal and fetal abnormalities during parturition using standardized clinical terms, postures, and neuroendocrine reflexes.

Step 2: Detailed Explanation:
Let us correlate each term from List I with its description in List II:
- A. Dog sitting posture: This is an abnormal maternal/fetal posture during parturition where the fetus is in a ventro-vertical presentation with its hind legs extended underneath its body, preventing delivery.
Thus, A matches with IV.
- B. Breech presentation: This refers to posterior presentation of the fetus in a bilateral hip-flexion posture, where only the buttocks and tail are presented at the pelvic inlet.
Thus, B matches with III.
- C. Ring womb: This is a condition in sheep characterized by the failure of the cervix to dilate during parturition, representing the commonest cause of dystocia in ewes.
Thus, C matches with II.
- D. Ferguson's reflex: This is a neuroendocrine reflex in which tactile stimulation of the cervix or vagina by the presenting fetus triggers the release of oxytocin from the posterior pituitary, enhancing uterine contractions during the second stage of labor.
Thus, D matches with I.

Step 3: Final Answer:
Combining these matched pairs gives the sequence A-IV, B-III, C-II, D-I, which corresponds to option (D).