Postganglionic Nerve Fibers Information
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Postganglionic nerve fibersIn the autonomic nervous system, fibers from the ganglion to the effector organ are called postganglionic fibers. Neurotransmitters. The neurotransmitters used for ...
Preganglionic nerve fibers
In the autonomic nervous system, fibers from the CNS to the ganglion are known as preganglionic fibers. All preganglionic fibers, whether they are in the sympathetic ...
Nerve fiber
A nerve fiber is a threadlike extension of a nerve cell and consists of an axon and myelin sheath (if present) in the nervous system. There are nerve fibers in the central ...
Axon
An axon is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma. An axon is one of two types of ...
Parasympathetic nervous system
The parasympathetic nervous system (PSNS) is one of the two main divisions of the autonomic nervous system (ANS). The ANS is responsible for regulation of internal organs ...
Sensory nerve
Sensory nerves are nerves that receive sensory stimuli, such as how something feels and if it is painful, smooth, rough, etc. They are made up of nerve fibers, called ...
Sympathetic nervous system
The (ortho-) sympathetic nervous system (SNS) is one of the three parts of the autonomic nervous system, along with the enteric and parasympathetic systems.
Group C nerve fiber
Structure and Anatomy Location. C fibers are found in the peripheral nerves of the somatic sensory system They are afferent fibers, conveying input signals from the periphery to ...
General visceral efferent fibers
The general visceral efferent fibers (GVE or post ganglionic sympathetic efferent fibers), probably arise from cells in the lateral column or the base of the anterior column ...
Projection fibers
The projection fibers consist of efferent and afferent fibers uniting the cortex with the lower parts of the brain and with the spinal cord. Efferent
Lacrimal gland
The lacrimal glands are paired almond-shaped glands, one for each eye, that secrete the aqueous layer of the tear film. They are situated in the upper, outer portion of ...
Afferent nerve fiber
In the nervous system, afferent neurons (otherwise known as sensory or receptor neurons), carry nerve impulses from receptors or sense organs towards the central nervous system.
General somatic efferent fibers
The *spinal* somatic efferent neurons (GSE, 'somatomotor, or somatic motor fibers), arise from motor neuron cell bodies in the ventral horns of the gray matter within the ...
Auriculotemporal nerve
The auriculotemporal nerve is a branch of the mandibular nerve that runs with the superficial temporal artery and vein, and provides sensory innervation to various regions ...
Efferent nerve fiber
In the nervous system, efferent nerves, otherwise known as motor or effector neurons, carry nerve impulses away from the central nervous system to effectors such as muscles or ...
Nervus intermedius
The nervus intermedius, or intermediate nerve, is the part of the facial nerve (cranial nerve VII) located between the motor component of the facial nerve and the ...
General visceral afferent fibers
The general visceral afferent fibers (GVA) conduct sensory impulses (usually pain or reflex sensations) from the viscera, glands, and blood vessels to the central nervous ...
Nerve of pterygoid canal
The nerve of the pterygoid canal (Vidian nerve) is formed by the junction of the great petrosal nerve and the deep petrosal nerve within the pterygoid canal containing the ...
Posterior root of spinal nerve
In anatomy and neurology, the dorsal root (or posterior root) is the afferent sensory root of a spinal nerve. At the distal end of the dorsal root is the dorsal root ganglion ...
Association fiber
Functionally, bundles of axons within the brain, called fibers, can be categorized into association fibers, projection fibers, and commissural fibers.
Lateral horn of spinal cord
In the thoracic region, the postero-lateral part of the anterior column projects lateralward as a triangular field, which is named the lateral column (lateral cornu, lateral ...
Epineurium
The epineurium is the outermost layer of connective tissue surrounding a peripheral nerve. It includes the blood vessels supplying the nerve. It is formed when the spinal ...
General somatic afferent fibers
The general somatic afferent fibers (GSA, or somatic sensory fibers), afferent fibers, arise from cells in the spinal ganglia and are found in all the spinal nerves, except ...
Nerve fascicle
A small bundle of nerve fibers, enclosed by the perineurium, is called a funiculus; if the nerve is of small size, it may consist only of a single funiculus; but if large ...
Anterior ramus of spinal nerve
The ventral ramus (anterior ramus, anterior branch, anterior divisions of the spinal nerves) supply the antero-lateral parts of the trunk, and the limbs; they are for the ...
Commissural fiber
The commissural fibers or transverse fibers connect the two hemispheres of the brain. They include: the transverse fibers of the corpus callosum; the anterior commissure
Funiculus (neurology)
The cerebrospinal fibers consist of numerous nerve fibers collected together and enclosed in membranous sheaths. A small bundle of fibers, enclosed in a tubular sheath, is ...
A delta fiber
A delta fibers, or Ad fibers, are a type of sensory fiber. They are associated with cold and pressure, and as nociceptors stimulation of them is interpreted as fast/first ...
Motor neuron
In vertebrates, the term motor neuron (or motoneuron) classically applies to neurons located in the central nervous system (or CNS) that project their axons outside the CNS ...
Perineurium
In the peripheral nervous system, nerve fibers are each wrapped in a protective sheath known as the endoneurium. These are bundled together into groups known as fascicles ...
Bipolar neuron
A bipolar cell is a type of neuron which has two extensions. Bipolar cells are specialized sensory neurons for the transmission of special senses.
Tympanic nerve
The tympanic nerve (nerve of Jacobson) is a branch of the glossopharyngeal nerve found near the ear.
Lemniscus (anatomy)
A lemniscus (Greek for ribbon or band) is an anatomic term. It can refer to: In anatomy, a part of the brain, such as the medial lemniscus or lateral lemniscus.
Multipolar neuron
A multipolar neuron (or multipolar neurone) is a type of neuron that possesses a single (usually long) axon and many dendrites, allowing for the integration of a great deal ...
Type II sensory fiber
Type II sensory fiber (group Ab) is a type of sensory fiber, the second of the two main groups of stretch receptors. They are non-adapting, meaning that they keep ...
Anterior root of spinal nerve
In anatomy and neurology, the ventral root (or anterior root) is the efferent motor root of a spinal nerve. At its distal end, the ventral root joins with the dorsal root to ...
Muscarinic acetylcholine receptor
Muscarinic receptors, or mAChRs, are G protein-coupled acetylcholine receptors found in the plasma membranes of certain neurons and other cells. They play several roles ...
Autonomic nervous system
The autonomic nervous system (ANS or visceral nervous system) is the part of the peripheral nervous system that acts as a control system functioning largely below the level ...
Posterior ramus of spinal nerve
The posterior (or dorsal) branches (or divisions) of the spinal nerves are as a rule smaller than the anterior divisions. They are also referred to as the dorsal rami.
Special somatic afferent
Special somatic afferent (SSA) refers to afferent nerves that carry information from the special senses of vision, hearing and balance. The cranial nerves containing SSA ...
Chorda tympani
The chorda tympani is a nerve that branches from the facial nerve (cranial nerve VII) inside the facial canal, just before the facial nerve exits the skull via the ...
Glossopharyngeal nerve
The glossopharyngeal nerve is the ninth (IX) of twelve pairs of cranial nerves (24 nerves total). It exits the brainstem out from the sides of the upper medulla, just ...
Special visceral afferent
Special visceral afferent (SVA) refers to afferent nerves that develop in association with the gastrointestinal tract They carry the special senses of smell and taste ...
Thoracic splanchnic nerves
Thoracic splanchnic nerves are splanchnic nerves that arise from the sympathetic trunk in the thorax and travel inferiorly to provide sympathetic innervation to the abdomen.
Beta motor neuron
A beta motor neuron (or beta motoneuron) is a kind of lower motor neuron, along with alpha motor neuron and gamma motor neuron. These motor neurons (b-MNs) innervate ...
Neuropil
In neuroanatomy, a neuropil, which is sometimes referred to as a neuropile, is a region between neuronal cell bodies in the gray matter of the brain and spinal cord (i.e. the ...
Otic ganglion
The otic ganglion is a small, oval shaped, flattened parasympathetic ganglion of a reddish-gray color, located immediately below the foramen ovale in the infratemporal fossa.
Pterygopalatine ganglion
The pterygopalatine ganglion is a parasympathetic ganglion found in the pterygopalatine fossa. It is one of four parasympathetic ganglia of the head and neck. (The ...
Special visceral efferent
Special visceral efferent (SVE) refers to efferent nerves which supply muscles which derived from the branchial arches. Some sources prefer the term "branchiomotor", or ...
Gray ramus communicans
Each spinal nerve receives a branch, gray ramus communicans, from the adjacent ganglion of the sympathetic trunk. They contain unmyelinated postganglionic sympathetic fibers.