conus medullaris


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Related to conus medullaris: cauda equina

conus

 [ko´nus] (pl. co´ni) (L.)
1. a cone-shaped structure.
2. posterior staphyloma of the myopic eye.
conus arterio´sus the anterosuperior portion of the right ventricle of the heart, at the entrance to the pulmonary trunk. Called also infundibulum.
conus medulla´ris the cone-shaped lower end of the spinal cord, at the level of the upper lumbar vertebrae.

co·nus me·dul·la·'ris

[TA]
the tapering lower extremity of the spinal cord.
Synonym(s): medullary cone [TA]

conus medullaris

the terminal end of the spinal cord.

conus medullaris

Anatomy The inferior, tapering portion of the spinal cord. See Spinal cord.

med·ul·lar·y cone

(med'ŭ-lar'ē kōn) [TA]
The tapering lower extremity of the spinal cord.
Synonym(s): conus medullaris [TA] .

conus

pl. coni [L.]
1. a cone or cone-shaped structure.
2. posterior staphyloma of the myopic eye.

conus arteriosus
the funnel-shaped portion of the right ventricle of the heart at the entrance to the pulmonary trunk.
conus medullaris
the cone-shaped caudal end of the spinal cord; found at the level of the upper lumbar vertebrae in the human spine, but more caudally in domestic animals.
References in periodicals archive ?
Influence of age and sex on the position of the conus medullaris and Tuffier's line in adults.
The location of OLF, SK and the tip of the conus medullaris (CM) were evaluated using preoperative MRI.
It is possible to determine low-lying conus medullaris, tight filum termi nale, and other congenital abnormalities (hydromyelia) with MR imaging (9).
5 cm in size with lobular contours in the conus medullaris located intramedullary and filum terminale was thick and tense (Figure 1).
25% of the study cohort had their conus medullaris ending at the upper level of L3.
abducens), ([double altered sensation (lateral border dagger]) of right leg) Belgium, Eosinophilic meningitis, WB 2008 paresthesias (left hemithorax, feet) France, 2008 Eosinophilic meningitis ([paragraph]) Clinical ([section]) Croatia Eosinophilic meningitis, WB lumbosacral myeloradiculitis conus medullaris syndrome), generalized paresthesias Country, year of report Treatment Ref.
Conus medullaris and cauda equina lesions (acontractile bladder)--these patients usually present with a flaccid bladder and internal sphincter or with a combination picture.
Major complications are rare and include aseptic meningitis, arachnoiditis, bacterial meningitis, epidural abscess, and conus medullaris syndrome.
Retaining their central spinal-cord connections, intercostal nerves were freed, routed through the spinal canal, and connected to sacral-nerve roots or implanted into the conus medullaris (i.
MRI of the thoracolumbar spine revealed nodular enhancement of the dura covering the thoracic spinal cord and conus medullaris.