Open Question
The aspect of sensory perception by which the cerebral cortex identifies the site or pattern of stimulation is
(a) perceptual detection
(b) feature abstraction
(c) pattern recognition
(d) spatial discrimination
13. The Peripheral Nervous System
Sensory Receptor Classification by Modality
Multiple Choice
Which of the following have nonencapsulated (free) nerve endings?
A
lamellar (Pacinian) corpuscles
B
hair follicle receptors
C
tactile (Meissner's) corpuscles
D
muscle spindles
Verified step by step guidance1
Understand the concept of nonencapsulated (free) nerve endings: These are sensory nerve endings that are not enclosed in a capsule and are typically found in the skin and mucous membranes. They are responsible for detecting pain, temperature, and light touch.
Identify the characteristics of each option: Lamellar (Pacinian) corpuscles, tactile (Meissner's) corpuscles, muscle spindles, and hair follicle receptors.
Lamellar (Pacinian) corpuscles: These are encapsulated nerve endings that detect deep pressure and vibration. They are not free nerve endings.
Tactile (Meissner's) corpuscles: These are also encapsulated and are responsible for detecting light touch and texture. They are not free nerve endings.
Hair follicle receptors: These are nonencapsulated nerve endings that wrap around hair follicles and detect hair movement, making them the correct answer.
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