Multiple Choice
Which of the following is the outermost layer of the skin?
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5. Integumentary System
Introduction to the Integumentary System
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Which of the following is NOT a primary function of the skin in the integumentary system?
A
Regulation of body temperature
B
Protection against pathogens
C
Sensation of touch and pain
D
Production of red blood cells
Verified step by step guidance1
Understand the primary functions of the skin in the integumentary system. These include regulation of body temperature, protection against pathogens, and sensation of touch and pain. The skin plays a vital role in maintaining homeostasis and serving as a barrier to external threats.
Recognize that the production of red blood cells is not a function of the skin. This process, known as erythropoiesis, occurs in the bone marrow, which is part of the skeletal system, not the integumentary system.
Compare the listed functions in the question to the known functions of the skin. Identify which function does not align with the integumentary system's role.
Eliminate the options that are true functions of the skin: regulation of body temperature, protection against pathogens, and sensation of touch and pain.
Conclude that the correct answer is 'Production of red blood cells,' as it is not a function of the skin but rather of the bone marrow.
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