Copious secretion of sweat is termed

Correct Answer: C

Rationale: Certainly! The correct answer is C: Perspiration. Copious sweat secretion is the body's way of regulating temperature through evaporative cooling. Blubber (A) refers to a layer of fat in marine mammals. Pelage (B) refers to an animal's fur or hair. Goose flesh (D) is the raised bumps on the skin due to cold or emotional stress. Perspiration is the specific term for the secretion of sweat by sweat glands for thermoregulation, making it the correct choice in this context.

Correct Answer: C

Rationale: The correct answer is C: Columnar. The cells of stratum malpighi are columnar in shape as they are tall and rectangular, providing structural support and protection to the underlying layers of skin. The other choices are incorrect because A: Oval, B: Flat, and D: Spherical do not accurately describe the shape of cells in stratum malpighi. The cells in this layer are specifically columnar to serve their function in the epidermis.

Correct Answer: B

Rationale: The correct answer is B because scar tissue is primarily composed of collagen fibers, which are produced by fibroblasts during the wound healing process. Collagen fibers provide structural support and help in tissue repair. Scar tissue also has relatively few blood vessels compared to normal tissue. A: Increased numbers of fibroblasts alone do not directly result in scar tissue formation. C: The stratum germinativum is part of the epidermis and not directly involved in the formation of scar tissue. D: Scar tissue does not involve an increase in epidermal layers; it is mainly about the dermal layer with collagen deposition.

Correct Answer: C

Rationale: The correct answer is C: Eponychium. The eponychium is the cuticle surrounding the nail, providing protection and sealing the nail bed. The free edge (Choice A) refers to the tip of the nail, not the cuticle. The lunula (Choice B) is the white, crescent-shaped area at the base of the nail and is not the cuticle. Epicondyle (Choice D) is a bony projection near a joint and is not related to the cuticle. Therefore, the eponychium is the correct answer as it specifically refers to the cuticle around the nail.

Correct Answer: B

Rationale: The correct answer is B: reticular. The reticular layer of the skin is located beneath the papillary layer and is composed of collagen and elastic fibers. These fibers provide strength and elasticity to the skin, helping to maintain its structure and integrity. The papillary layer is primarily responsible for nourishing the epidermis, while the epidermal layer is the outermost layer of the skin responsible for protection. The subcutaneous layer, also known as the hypodermis, is composed of fat and connective tissue, providing insulation and cushioning rather than strength. Therefore, the reticular layer is the most appropriate choice for the layer of the skin containing collagen and elastic fibers crucial for skin strength.