Textbook Question
Receptors in the saccule and utricle provide sensations of
(a) Angular acceleration
(b) Hearing
(c) Vibration
(d) Gravity and linear acceleration and deceleration
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13. The Peripheral Nervous System
Sensory Receptor Classification by Modality
Multiple Choice
Which type of receptor is not a mechanoreceptor?
A
Meissner's corpuscle
B
Pacinian corpuscle
C
Merkel cell
D
Thermoreceptor
Verified step by step guidance1
Understand the definition of mechanoreceptors: Mechanoreceptors are sensory receptors that respond to mechanical pressure or distortion. They are involved in sensing touch, pressure, vibration, and stretch.
Identify the function of each option: Meissner's corpuscle, Pacinian corpuscle, and Merkel cell are all types of mechanoreceptors. They detect different types of mechanical stimuli such as light touch, deep pressure, and texture.
Define thermoreceptors: Thermoreceptors are sensory receptors that respond to changes in temperature. They are not involved in detecting mechanical stimuli.
Compare the functions: Since mechanoreceptors respond to mechanical changes and thermoreceptors respond to temperature changes, thermoreceptors are not mechanoreceptors.
Conclude that the type of receptor that is not a mechanoreceptor is the thermoreceptor, as it does not respond to mechanical stimuli but rather to temperature changes.
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