前根
- 関
- ventral root
WordNet
- plant by the roots
- (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground
- a number that, when multiplied by itself some number of times, equals a given number
- cause to take roots
- take root and begin to grow; "this plant roots quickly"
- (linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem" (同)root word, base, stem, theme, radical
- the part of a tooth that is embedded in the jaw and serves as support (同)tooth_root
- come into existence, originate; "The problem roots in her depression"
- of or near the head end or toward the front plane of a body
- earlier in time (同)prior
- the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage; "his roots in Texas go back a long way"; "he went back to Sweden to search for his roots"; "his music has African roots"
- the process of putting forth roots and beginning to grow
PrepTutorEJDIC
- 《しばしば複数形で》『根』 / 『根元』 / 《the~》『根源』,根本;根底 / 《複数形で》(その人の根底にある)ある場所との根源的なつながり / (数学で)根,ルート / (派生語の)語根(例えばrootlessの中のroot) / 〈植物〉‘を'『根づかせる』 / 《しばしば受動態で》(根をおろしたように)(…に)…‘を'『定着させる』『+『名』+『to』(『in』)+『名』》 / (…に)『根を下ろす』,定着する《+『in』(『on』,『to』)+『名』》
- 〈豚などが〉(…をあさって)鼻で地面を掘る《+『about』(『around』)『for』+『名』》 / (…を捜して)〈人が〉かき回す《+『about for』+『名』》
- (…を)声援する,(…の)成功を願う《+『for』+『名』》
- (場所などが)前の,前部の;(…より)前に位置する《+『to』+『名』》 / (時・事件などが)以前の,先の;(…より)前の《+『to』+『名』》
- 《補語にのみ用いて》(植物が)根づいた / (考えなどが)定着した
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/09/20 10:14:43」(JST)
[Wiki en表示]
Anterior root of spinal nerve |
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The formation of the spinal nerve from the dorsal and ventral roots |
Latin |
radix anterior nervi spinalis |
Gray's |
subject #208 916 |
MeSH |
Ventral+Roots |
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 form a mixed spinal nerve.
Additional images[edit source | edit]
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A spinal nerve with its anterior and posterior.
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Diagrammatic transverse section of the medulla spinalis and its membranes.
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A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots.
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Scheme showing structure of a typical spinal nerve.
External links[edit source | edit]
- SUNY Figs 02:04-12
- Atlas of anatomy at UMich n3a6p1 - "Autonomic Connections of the Spinal Cord"
- Anatomy Atlases - Microscopic Anatomy, plate 06.114 - "Spinal Root Nerve Fibers"
- Diagram at tcc.fl.edu (look for #2)
Histology: nervous tissue (TA A14, GA 9.849, TH H2.00.06, H3.11)
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CNS |
General
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Grey matter · White matter (Projection fibers · Association fiber · Commissural fiber · Lemniscus · Funiculus · Fasciculus · Decussation · Commissure) · meninges
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Neuroglia
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Myelination: Oligodendrocyte
Astrocyte (Radial glial cell) · Ependymal cells (Tanycyte) · Microglia
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Other
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Pyramidal · Purkinje · Granule
Neuropil
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PNS |
General
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Posterior (Root, Ganglion, Ramus) · Anterior (Root, Ramus) · rami communicantes (Gray, White) · Autonomic ganglion (Preganglionic nerve fibers · Postganglionic nerve fibers)
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Connective tissues
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epineurium · perineurium · endoneurium · nerve fascicle
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Neuroglia
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Myelination: Schwann cell (Neurolemma, Myelin incisure, Myelin sheath gap, Internodal segment)
Satellite glial cell
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Neurons/
nerve fibers |
Parts
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Perikaryon (Axon hillock)
Axon (Axon terminals, Axoplasm, Axolemma, Neurofibril/neurofilament)
Dendrite (Nissl body, Dendritic spine, Apical dendrite/Basal dendrite)
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Types
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Bipolar · Unipolar · Pseudounipolar · Multipolar · Interneuron (Renshaw)
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Afferent nerve fiber/
Sensory nerve
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GSA · GVA · SSA · SVA
fibers (Ia, Ib or Golgi, II or Aβ, III or Aδ or fast pain, IV or C or slow pain)
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Efferent nerve fiber/
Motor nerve
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GSE · GVE · SVE
Upper motor neuron · Lower motor neuron (α motorneuron, γ motorneuron, β motorneuron)
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Termination |
Synapse
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Electrical synapse/Gap junction · Chemical synapse (Synaptic vesicle, Active zone, Postsynaptic density) · Ribbon synapse · Neuromuscular junction
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Sensory receptors
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Meissner's corpuscle · Merkel nerve ending · Pacinian corpuscle · Ruffini ending · Muscle spindle · Free nerve ending · Olfactory receptor neuron · Photoreceptor cell · Hair cell · Taste bud
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anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
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noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
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proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
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anat (h/r/t/c/b/l/s/a)/phys (r)/devp/prot/nttr/nttm/ntrp
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noco/auto/cong/tumr, sysi/epon, injr
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- NAID 110009457401
Related Pictures
★リンクテーブル★
[★]
- 英
- ventral root, anterior root
- ラ
- radix anterior, radix ventralis
- 関
- 脊髄神経
[★]
前根
- 関
- anterior root、dorsal root、spinal nerve root、spinal root
[★]
- (神経の)神経根、(植物の)根、根菜類、(舌・耳・翼・指などの)付け根、根元、(歯・毛・つめなどの)根、根源、根本、核心、基礎、ルーツ
[★]
- 関
- anterioris、anteriorly、before、fore、former、pre、prior