Multiple Choice
Which of the following correctly identifies the outermost layer of the skin in a typical diagram of the integumentary system?
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5. Integumentary System
Introduction to the Integumentary System
Multiple Choice
Which of the following exteroreceptors in the skin is primarily responsible for detecting light touch?
A
Meissner's corpuscles
B
Free nerve endings
C
Ruffini endings
D
Pacinian corpuscles
Verified step by step guidance1
Understand the term 'exteroreceptors': These are sensory receptors located in the skin that respond to external stimuli such as touch, pressure, temperature, and pain.
Review the function of Meissner's corpuscles: These are specialized nerve endings found in the dermal papillae of the skin, particularly in areas like fingertips and lips. They are responsible for detecting light touch and texture.
Compare Meissner's corpuscles with other options: Free nerve endings detect pain and temperature, Ruffini endings respond to skin stretch and sustained pressure, and Pacinian corpuscles detect deep pressure and vibration.
Identify the correct receptor for light touch: Based on the descriptions, Meissner's corpuscles are the primary exteroreceptors responsible for detecting light touch.
Conclude the reasoning: Meissner's corpuscles are specialized for light touch detection, making them the correct answer in this context.
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