Nerve fascicle

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Nerve fascicle

Transverse section of human tibial nerve.

Nerve structure
Gray's	subject #183 728

A small bundle of nerve fibers, enclosed by the perineurium, is called a fasciculus; if the nerve is of small size, it may consist only of a single fasciculus; but if large, the fasciculi are collected together into larger bundles or funiculi, which are bound together in a common membranous investment.

External links

Organology at UC Davis nervous/pns/nerve1/nerve3 - "PNS, nerve (LM, Low)"
Histology at neurobio.ucla.edu

Histology: nervous tissue (TA A14, GA 9.849, TH H2.00.06, H3.11)

CNS

General	Grey matter · White matter (Projection fibers · Association fiber · Commissural fiber · Lemniscus · Funiculus · Fasciculus · Decussation · Commissure) · meninges

Neuroglia	Myelination: Oligodendrocyte Astrocyte (Radial glial cell) · Ependymal cells (Tanycyte) · Microglia

Other	Pyramidal · Purkinje · Granule Neuropil

PNS

General	Posterior (Root, Ganglion, Ramus) · Anterior (Root, Ramus) · rami communicantes (Gray, White) · Autonomic ganglion (Preganglionic nerve fibers · Postganglionic nerve fibers)

Connective tissues	epineurium · perineurium · endoneurium · nerve fascicle

Neuroglia	Myelination: Schwann cell (Neurolemma, Myelin incisure, Myelin sheath gap, Internodal segment) Satellite glial cell

Neurons/
nerve fibers

Parts	Perikaryon (Axon hillock) Axon (Axon terminals, Axoplasm, Axolemma, Neurofibril/neurofilament) Dendrite (Nissl body, Dendritic spine, Apical dendrite/Basal dendrite)

Types	Bipolar · Unipolar · Pseudounipolar · Multipolar · Interneuron (Renshaw)

Afferent nerve fiber/ Sensory nerve	GSA · GVA · SSA · SVA fibers (Ia, Ib or Golgi, II or Aβ, III or Aδ or fast pain, IV or C or slow pain)

Efferent nerve fiber/ Motor nerve	GSE · GVE · SVE Upper motor neuron · Lower motor neuron (α motorneuron, γ motorneuron, β motorneuron)

Termination

Synapse	Electrical synapse/Gap junction · Chemical synapse (Synaptic vesicle, Active zone, Postsynaptic density) · Ribbon synapse · Neuromuscular junction

Sensory receptors	Meissner's corpuscle · Merkel nerve ending · Pacinian corpuscle · Ruffini ending · Muscle spindle · Free nerve ending · Olfactory receptor neuron · Photoreceptor cell · Hair cell · Taste bud

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

M: PNS

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

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