Sensory Innervation
Sensory Innervation - Related Videos
07:08
A Method to Target and Isolate Airway-innervating Sensory Neurons in Mice
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Cited by 9 •
2016
Organ specific sensory neurons are difficult to identify. Fast Blue tracing is used to identify nodose neurons innervating the airways for cell sorting. Sorted nodose neurons are used to extract high quality ribonucleic acid (RNA) for sequencing. Using this protocol, gene expression of airway specific neurons is determined.
10:25
Tissue Preparation and Immunostaining of Mouse Sensory Nerve Fibers Innervating Skin and Limb Bones
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Cited by 21 •
2012
Immunocytochemical identification of peripheral sensory nerve fiber subtypes (and detection of protein expression therein) are key to the understanding of molecular mechanisms underlying peripheral sensation. Here we describe methods for preparation of peripheral/visceral tissue samples, such as skin and limb bones, for specific immunostaining of peripheral sensory nerve fibers.
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Sensory Exam
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2023
Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA A complete sensory examination consists of testing primary sensory modalities as well as cortical sensory function. Primary sensory modalities include pain, temperature, light touch, vibration, and joint position sense. Sensation of the face is discussed in the videos Cranial Nerves Exam I and II, as are the special senses of smell, vision, taste, and...
01:31
What is a Sensory System?
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2019
Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position. Sensory systems include the visual, auditory, gustatory (taste), olfactory (smell), somatosensory (touch, pain, temperature, and proprioception), and vestibular...
09:43
Functional and Morphological Assessment of Diaphragm Innervation by Phrenic Motor Neurons
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Cited by 16 •
2015
Compound muscle action potential recording quantitatively assesses functional diaphragm innervation by phrenic motor neurons. Whole-mount diaphragm immunohistochemistry assesses morphological innervation at individual neuromuscular junctions. The goal of this protocol is to demonstrate how these two powerful methodologies can be used in various rodent models of spinal cord disease.
FAQs
Receptors are specialized for different stimulus categories, including mechanical, thermal, chemical, and potentially damaging inputs. Their role is to convert those stimuli into electrical signals, creating a form that afferent neurons can carry. This initial conversion preserves information about the type of environmental or internal change and begins the pathway toward perception or physiological regulation.
Afferent neurons transmit electrical signals from sensory receptors through peripheral nerves toward the spinal cord and brain. Central processing then gives those signals biological meaning, supporting conscious experiences such as touch, pain, or temperature and contributing to regulation of internal organs. Thus, sensory information depends on both peripheral transmission and interpretation within the central nervous system.
Signals from external tissues support perception of the surrounding environment, whereas signals from organs provide information relevant to internal physiological regulation. This distinction connects sensory pathways with both behavior and organ function. Studying where fibers reach, and which stimuli they detect, helps explain how the nervous system coordinates responses to conditions inside and outside the body.
Changes in the distribution of sensory fibers or in their signaling can modify how stimuli are detected and transmitted. Such alterations may contribute to disease and injury by disrupting information used for perception, pain processing, temperature detection, touch, or organ regulation. Comparing normal and altered innervation therefore helps researchers investigate mechanisms underlying sensory disorders and impaired tissue function.
Mapping identifies how sensory nerve fibers are distributed across tissues and organs and relates that distribution to the stimuli or functions they serve. The resulting organization can clarify pathways associated with touch, pain, temperature, and organ activity. It also provides a framework for comparing normal patterns with changes linked to disease, injury, development, or repair.
Innervation patterns provide biological context for studying how sensory connections develop and how they may be restored after injury. Research can examine whether altered nerve distribution or signaling affects tissue function and sensory outcomes. This knowledge supports investigation of nerve repair and tissue regeneration, while also helping connect structural changes with pain or other sensory disorders.