ATI RN
Integumentary System Multiple Choice Questions and Answers Questions
Question 1 of 5
What is the primary role of Meissner's corpuscles in the skin?
Correct Answer: B
Rationale: Meissner's corpuscles, in the upper dermis, detect light touch and low-frequency pressure, enabling fine tactile sensation like texture. Pain is nociceptors' domain, temperature changes are thermoreceptors', and sweat production is glandular, not receptor-related. Their location and sensitivity to gentle contact distinguish them in the skin's sensory system, making this their primary role.
Question 2 of 5
The skin plays a vital role in synthesizing vitamin D, which is essential for:
Correct Answer: B
Rationale: Skin synthesizes vitamin D via UV conversion of 7-dehydrocholesterol, essential for calcium absorption in the gut and bone health, preventing conditions like rickets. Blood clotting needs vitamin K, digestion involves enzymes, and temperature regulation uses sweat, none vitamin D-dependent. This metabolic role, supporting skeletal integrity, makes it the correct essential function.
Question 3 of 5
Which of the following terms matches the statement: to increase the fibrous element; to make hard as in the presence of cellulites?
Correct Answer: A
Rationale: Induration refers to the hardening of tissue due to an increase in fibrous elements, often seen in conditions like cellulitis (likely meant by 'cellulites' in the question, a common typo), where inflammation causes tissue to become firm and thickened. Necrosis is the death of tissue, not hardening, and presents as black or discolored areas. Eschar is a specific type of necrotic tissue forming a thick, leathery layer, but it's not about increasing fibrous elements broadly. Maceration is the softening of tissue due to moisture, the opposite of hardening. Induration fits the description of fibrous hardening in inflammatory conditions like cellulitis, making it the correct term.
Question 4 of 5
Which of the following is beneath the stratum corneum?
Correct Answer: C
Rationale: The stratum corneum is the outermost epidermal layer, and directly beneath it lies the stratum granulosum, where cells transition to form the keratinized surface. The stratum spinosum is deeper, below the granulosum, providing strength. The stratum basale is the deepest layer, far below the corneum. Since the question asks what is immediately beneath the stratum corneum, the stratum granulosum fits as the next layer in the epidermal structure, making it the correct answer.
Question 5 of 5
Which of the following word pairs is (are) appropriate?
Correct Answer: C
Rationale: The integumentary system is a complex structure that serves as the body's outer covering, including skin, hair, nails, and glands. While 'iatcgument-gland' appears to be a typo and does not make sense in this context, 'integument-tissue' refers to the skin as a type of tissue, which is accurate but incomplete. The term 'integument-organ' is the most appropriate because the integumentary system is classified as an organ system in anatomy, encompassing multiple tissues (epithelial, connective, etc.) working together. 'All the above' would only be correct if all pairs were valid, but the first option is not, likely due to a transcription error. The focus on the integument as an organ aligns with its role in protection, temperature regulation, and sensory reception, making it more than just a tissue or a gland-related structure. Thus, the precise pairing is one that recognizes its status as an organ, reflecting its integrated functions and anatomical significance.