Comparative Osteology & Arthrology

• Systemic Inflammatory Response in Neonatal Farm Animals:
• Neonatal septicemia (joint ill, navel ill, colisepticemia) in calves, foals, and piglets results from opportunistic bacterial invasion (e.g., E. coli, Salmonella) following failure of passive transfer (FPT) of colostral immunoglobulins.
• Cardiovascular and Thermoregulatory Signs:
• The release of pyrogenic cytokines (IL-1, TNF-$\alpha$) and bacterial endotoxins (LPS) resets the hypothalamic thermostat, producing marked elevated body temperature (pyrexia / hyperthermia) in early stages, accompanied by depression, injected scleral vessels, and loss of suckle reflex.
• nalysis:
• (Elevated body temperature): Correct diagnostic clinical sign.

Correct option: (2) Elevated body temperature

• Pharmacodynamics of Antacids:
• Antacids (aluminum hydroxide, magnesium hydroxide, calcium carbonate) are basic compounds that chemically react with gastric hydrochloric acid ($HCl$) to form neutral salts and water.
• By instantly raising intragastric pH above $3.5 - 4.0$, antacids neutralize free acidity and inactivate proteolytic pepsin.
• Their primary and most immediate clinical utility is the prompt relief of ulcer pain within minutes of administration.
• (Definitive ulcer healing and relapse prevention are achieved with H2-receptor antagonists or proton pump inhibitors like omeprazole).
• nalysis:
• (Prompt relief of pain): Correct.

Correct option: (1) Prompt relief of pain

• Chronology of Testicular Descent into the Scrotum:
• Cat: Testes are situated in the scrotum at or shortly after birth (III. 2–5 days after birth).
• Dog: Testes migrate through the inguinal canal between the last days of gestation and enter the scrotum shortly after birth (IV. B/w last few days of gestation & few days after birth, typically palpable by 10–14 days).
• Sheep (Ram): Testicular descent is early and strictly intrauterine, completed during mid-gestation (I. ~80 days) of fetal life.
• Horse (Colt): Testes normally descend into the scrotum around birth or (II) Few days after birth (up to 10–14 days postpartum).
• Matching Result:
• (III), (B)-(IV), (C)-(I), (D)-(II). Hence, Option 4 is correct.

• Comparative Anatomy of Mammalian Uteri:
• Simple Uterus (A): Single uterine body without uterine horns; characteristic of Primates (humans). (Correct match).
• Duplex Uterus (D): Two completely separate uterine horns, two distinct uterine bodies, and two separate cervices opening into the vagina; characteristic of Rodents (rats, guinea pigs) and Lagomorphs (rabbits). (Correct match).
• Bicornuate Uterus: Single cervix, small body, long horns (Sow, Bitch, Mare).
• Therefore, pairs A and D are correctly matched.
• nalysis:
• (Only A & D): Correct.

Correct option: (3) OnlyA&D