WordNet
- in opposition to a proposition, opinion, etc.; "much was written pro and con"
- an argument opposed to a proposal
- a pattern of symptoms indicative of some disease
- a complex of concurrent things; "every word has a syndrome of meanings"
PrepTutorEJDIC
- …'を'よく研究する
- 反対して / 反対投票,反対論
- 〈人〉'を'ペテンにかける
- =convict
- =confidence trick
- (疾患の徴候となる一群の)症徴候,症候群 / (事件・社会的状態などのパターンを示す)徴候形態
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/06/24 21:58:59」(JST)
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Conus medullaris |
Cauda equina and filum terminale seen from behind. The dura mater has been opened and spread out, and the arachnoid mater has been removed.
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Gray's |
p.749 |
The conus medullaris (Latin for "medullary cone") is the tapered, lower end of the spinal cord. It occurs near lumbar vertebral levels 1 (L1) and 2 (L2). The upper end of the conus medullaris is usually not well defined.
After the spinal cord tapers out, the spinal nerves continue to branch out diagonally, forming the cauda equina.
The pia mater that surrounds the spinal cord, however, projects directly downward, forming a slender filament called the filum terminale, which connects the conus medullaris to the back of the coccyx. The tension that the filum terminale provides between the conus medullaris and the coccyx stabilizes the entire spinal cord.[1]
Contents
- 1 Blood supply
- 2 Pathology
- 3 References
- 4 External links
Blood supply
The blood supply consists of three spinal arterial vessels—the anterior median longitudinal arterial trunk and two posterolateral trunks. Other less prominent sources of blood supply include radicular arterial branches from the aorta, lateral sacral arteries, and the fifth lumbar, iliolumbar, and middle sacral arteries. The latter contribute more to the vascular supply of the cauda equina.
Pathology
Conus medullaris syndrome is a collection of signs and symptoms associated with injury to the conus medullaris.[2]>
References
- ^ http://medical-dictionary.thefreedictionary.com/Filum+terminale
- ^ "Cauda Equina and Conus Medullaris Syndromes- MedScape-Reference". <
External links
- Atlas image: n3a2p5 at the University of Michigan Health System - "Lower Third of Spinal Cord, MRI"
Anatomy of torso (primarily): the spinal cord (TA 14.1.02, GA 9.749)
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External, dorsal |
- Posterior median sulcus
- Posterolateral sulcus
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Grey matter/
Rexed laminae |
I–VI: Posterior horn |
- I: Marginal nucleus
- II: Substantia gelatinosa of Rolando
- III+IV: Nucleus proprius
- Spinal lamina V
- Spinal lamina VI
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VII: Lateral horn |
- Intermediolateral nucleus
- Posterior thoracic nucleus
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VIII–IX: Anterior horn |
- Interneuron
- Alpha motor neuron
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X: Other |
- Central gelatinous substance
- Gray commissure
- Central canal
- Terminal ventricle
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White matter |
somatic/
ascending
(blue) |
Posterior/PCML: |
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Lateral: |
- proprioception: Spinocerebellar
- pain/temp: Spinothalamic
- Posterolateral (Lissauer)
- Spinotectal
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- Spinoreticular tract
- Spino-olivary tract
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motor/
descending
(red) |
Lateral: |
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Anterior: |
- Corticospinal
- Ep
- Vestibulospinal
- Reticulospinal
- Tectospinal
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both |
- Anterior white commissure
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External, ventral |
- Anterior median fissure
- Anterolateral sulcus
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External, general |
- Cervical enlargement
- Lumbar enlargement
- Conus medullaris
- Filum terminale
- Cauda equina
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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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UpToDate Contents
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English Journal
- Whole-Body 18F-Fluorocholine (FCH) PET/CT and MRI of the Spine for Monitoring Patients With Castration-Resistant Prostate Cancer Metastatic to Bone: A Pilot Study.
- Balogova S1, Zakoun JB, Michaud L, Khalil A, Tassart M, Esteso A, Kerrou K, Huchet V, Carette MF, Lotz JP, Talbot JN.
- Clinical nuclear medicine.Clin Nucl Med.2014 Nov;39(11):951-9. doi: 10.1097/RLU.0000000000000562.
- INTRODUCTION: Several treatments are proposed for castration-resistant prostate cancer (CRPC) at the metastatic stage. Monitoring of response using serum prostate-specific antigen (PSA) levels (sPSA) can be insufficient at this stage. Imaging has been proposed, in particular, nuclear medicine functi
- PMID 25140552
- An optimization study of the screw orientation on the interfacial strength of the anterior lumbar plate system using neurogenetic algorithms and experimental validation.
- Lee CH, Hsu CC, Huy DC.
- Journal of biomechanical engineering.J Biomech Eng.2014 Nov;136(11). doi: 10.1115/1.4028412.
- Anterior lumbar plate (ALP) systems have been widely used as an effective interbody fusion device for treating spinal cord compression. However, clinical complications, such as implant loosening and breakage, still occur. Past studies have investigated the effects of the screw orientation on the int
- PMID 25162521
- Dynamic MRI testing of the cervical spine has prognostic significance in patients with progressive upper-limb distal weakness and atrophy.
- Gotkine M1, Abraham A2, Drory VE2, Argov Z3, Gomori JM4, Blumen SC5.
- Journal of the neurological sciences.J Neurol Sci.2014 Oct 15;345(1-2):168-71. doi: 10.1016/j.jns.2014.07.034. Epub 2014 Jul 19.
- BACKGROUND: The syndrome of isolated progressive upper-limb distal weakness and atrophy results from disease processes affecting lower motor neurons originating in the cervical anterior horn gray matter. Lower motor neuron dysfunction restricted to the C7-T1 myotomes in the absence of neuropathy, up
- PMID 25085761
Japanese Journal
- 症例報告 下肢痛を主訴とした低位脊髄円錐を伴う脊髄係留症候群の2 例
- Lumbar Congestive Myelopathy Mimicking Neoplasia Without Concurrent Vascular Malformation : Case Report
- TSUTSUMI Satoshi,ABE Yusuke,YASUMOTO Yukimasa,ITO Masanori
- Neurologia medico-chirurgica = 神経外科 49(7), 316-319, 2009-07-15
- … A 78-year-old male presented with congestive myelopathy manifesting as progressive gait disturbance following conservative therapy for lumbar spinal canal stenosis, with suspected spinal cord tumor in the conus medullaris. …
- NAID 10025948208
Related Links
- Cauda equina syndrome is caused by any narrowing of the spinal canal that compresses the nerve roots below the level of the spinal cord. [14] Numerous causes of cauda equina syndrome have been reported, including ...
- Patients can present with symptoms of isolated cauda equina syndrome, isolated conus medullaris syndrome, or a combination. The symptoms and signs of cauda equina syndrome tend to be mostly lower motor neuron ...
Related Pictures
★リンクテーブル★
[★]
- 英
- conus medullaris syndrome, conus syndrome
- 関
- 脊髄圧迫、圧迫性脊髄症、サドル状感覚消失、脊髄円錐
[★]
イモガイ、イモガイ属
- 関
- Conus snail
[★]