ATI RN
Integumentary System Questions Questions
Question 1 of 5
The cells of stratum malpighi are-
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.
Question 2 of 5
The cuticle around a nail is the
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.
Question 3 of 5
The layer of the skin that contains bundles of collagen and elastic bers responsible for the strength of the skin is the ________ layer.
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.
Question 4 of 5
What is the survival rate of a localized malignant melanoma that is detected and removed in the early stages of the cancer?
Correct Answer: A
Rationale: The correct answer is A: Above 95%. In localized malignant melanoma, early detection and removal significantly increase the survival rate. With timely intervention, the survival rate can exceed 95% due to the cancer being confined to the primary site and not having spread to other parts of the body. This is supported by medical research and statistical data on cancer outcomes. Choices B, C, and D are incorrect because they do not accurately reflect the high survival rate associated with early detection and treatment of localized malignant melanoma. Choice B (75%) is too low, while choices C (60%) and D (40%) are even further from the actual survival rates for early-stage melanoma.
Question 5 of 5
All of the following can be used in the management of severe burn except
Correct Answer: A
Rationale: The correct answer is A: cell culture. In the management of severe burns, cell culture is not typically used. Fluid replacement is crucial for maintaining circulation and preventing shock. Corticosteroids may help reduce inflammation. Antibiotics are used to prevent or treat infections. Cell culture is not directly involved in the immediate management of severe burns and is more relevant in research or specialized cases.