Which of the following glands are called scent glands

Correct Answer: B

Rationale: The correct answer is B: Perineal glands. Perineal glands are scent glands found in animals to produce pheromones. These glands are responsible for emitting scents used in communication and territorial marking. Zeis glands are sebaceous glands in the eyelids, Ceruminous glands produce earwax, and Sweat glands produce sweat for thermoregulation. Therefore, perineal glands are the only glands specifically known for producing scents.

Correct Answer: B

Rationale: The correct answer is B: Tanning. Tanning is the process of converting raw animal hides into leather by treating them with chemicals to preserve and strengthen the material. Taxidermy is the preserving of animal bodies, not the formation of leather. Keratinization is the process of converting soft tissues into hard structures like hair and nails, not the formation of leather. So, tanning is the only choice directly related to the formation of leather from the skin.

Correct Answer: A

Rationale: The correct answer is A: End organs of Ruffini. These corpuscles are stimulated by hot temperatures due to their function as thermoreceptors. Ruffini corpuscles respond to sustained pressure and warmth, making them sensitive to hot temperatures. The other choices are incorrect because: B: Crases corpuscles respond to deep pressure. C: Bulb corpuscles, also known as Pacinian corpuscles, respond to deep pressure and vibration. D: Meissner's corpuscles respond to light touch and are located in the dermal papillae of hairless skin.

Correct Answer: D

Rationale: The correct answer is D: Acting as a receptor organ. Mammalian skin contains sensory receptors for touch, pressure, pain, temperature, and vibration. These receptors play a crucial role in detecting and responding to external stimuli, aiding in survival. Skin is not primarily meant for A: The removal of excess water, as this function is mainly carried out by the kidneys. Skin does not excrete urea, making B incorrect. Skin is not responsible for storage of food, making C an incorrect choice. Thus, the correct answer is D as skin primarily acts as a receptor organ for sensory perception.

Correct Answer: B

Rationale: The correct answer is B: Colostrum. Colostrum is the first milk produced by the mammary glands following childbirth. It is rich in antibodies, proteins, and nutrients, essential for the newborn's immune system and overall development. It is crucial for providing protection and nourishment to the newborn. Incorrect choices: A: Infant milk - Incorrect, as the milk produced immediately after childbirth is colostrum, not infant milk. C: Casein - Incorrect, as casein is a protein found in milk but not specifically related to the first milk produced after childbirth. D: None of these - Incorrect, as colostrum is the correct term for the first milk secreted after childbirth.