Which type of sensory structures carrying the touch sensations are present in papillae extending into the ridges of the fingertips?
Correct answer: C. Meissner's Corpuscles
- A. Hair end organs
- B. Pacinian corpuscles
- C. Meissner's Corpuscles
- D. All of these options are correct
Explanation
Meissner's corpuscles respond to touch and low-frequency vibration. Ruffini endings detect stretch, deformation within joints, and warmth. Pacinian corpuscles detect transient pressure and high-frequency vibration.
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Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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