The first milk secreted following child birth is called-

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.

Correct Answer: B

Rationale: The correct answer is B: Perineal glands. Rabbits produce a highly odorous and characteristic smell through their perineal glands. These glands are located near the anus and secrete a substance that helps rabbits communicate through scent marking. A: Tarsal glands are located on the legs of deer and are not related to rabbits' distinctive smell. C: Zeis glands are associated with eyelashes and are not responsible for the odor produced by rabbits. D: "None of these" is incorrect as perineal glands are indeed responsible for the odor in rabbits. In summary, the perineal glands in rabbits secrete a substance that gives them their unique smell, making choice B the correct answer.

Correct Answer: B

Rationale: The correct answer is B: Papillary. This layer is located right below the epidermis, contains blood vessels, nerves, and capillaries closest to the skin surface, aiding in temperature regulation and sensation. The subcutaneous layer (A) is deeper and primarily consists of fat cells. The reticular layer (C) is deeper than the papillary layer and mainly provides structural support. Hypodermal (D) is not a recognized skin layer term. Thus, the papillary layer is the correct choice due to its proximity to the skin surface and functions related to blood vessels and nerves.

Correct Answer: B

Rationale: The correct answer is B: Latent. Evaporation of a fluid through the skin is considered latent water loss because it occurs without any noticeable signs or symptoms. This type of water loss is not easily perceptible and may not be readily apparent to an individual. Sensible water loss (choice A) refers to water loss that is easily measurable, such as through sweating. Intensible (choice C) and discrete (choice D) are not terms used to describe water loss through evaporation of fluids. Therefore, the correct term for water loss due to evaporation through the skin is latent.

Correct Answer: A

Rationale: The correct answer is A: full thickness. When the epidermis, dermis, and part of the hypodermis are burned, it involves damage to all layers of the skin, including the deepest layer. This results in complete destruction of the skin layers, making it a full-thickness burn. The other choices are incorrect because: B: Second degree burns involve damage to the epidermis and part of the dermis, not the hypodermis. C: Partial thickness burns affect only parts of the epidermis and dermis, not the hypodermis. D: First degree burns are superficial, involving only the epidermis and not the dermis or hypodermis.