SULCUS LIMITANS Meaning and
Definition
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The term "sulcus limitans" refers to a prominent groove or indentation observed within the central nervous system (CNS), specifically the spinal cord and the developing brain. The sulcus limitans serves as a boundary that demarcates the neural structures involved in motor control from those involved in sensory processing.
In the spinal cord, the sulcus limitans runs longitudinally along the lateral aspect of the central canal, separating the dorsal (posterior) and ventral (anterior) horns. This anatomical division reflects the functional organization of grey matter, with the dorsal horn being involved in sensory processing and the ventral horn playing a crucial role in motor control.
Similarly, in the developing brain, the sulcus limitans separates two distinct regions referred to as the alar plate and the basal plate. The alar plate gives rise to structures involved in sensory processing, auditory and visual information, while the basal plate is associated with motor function.
The sulcus limitans plays a critical role in the development and organization of the central nervous system, contributing to the proper wiring and functionality of neural circuits involved in sensory perception and motor coordination. Understanding the location and significance of the sulcus limitans aids researchers and medical professionals in comprehending the complex organization of the CNS and its role in various neurological functions.
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(1) A lateral groove running the whole length of the rhomboidal fossa on either side of the posterior median fissure, the remains of the embryonic sulcus separating the ventral and dorsal zones of the medullary canal; (2) limiting s. of Reil, s. circularis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SULCUS LIMITANS
- aulcus limitans
- zulcus limitans
- xulcus limitans
- dulcus limitans
- eulcus limitans
- wulcus limitans
- sylcus limitans
- shlcus limitans
- sjlcus limitans
- silcus limitans
- s8lcus limitans
- s7lcus limitans
- sukcus limitans
- supcus limitans
- suocus limitans
- sulxus limitans
- sulvus limitans
- sulfus limitans
- suldus limitans
- sulcys limitans
Etymology of SULCUS LIMITANS
The term "sulcus limitans" is derived from Latin. "Sulcus" means "furrow" or "groove", and "limitans" comes from the Latin verb "limitare", meaning "to limit" or "to bound". So, "sulcus limitans" can be translated as the "limiting groove" or "boundary furrow". This term is often used in anatomy to refer to specific grooves or creases that mark boundaries between different regions or structures.
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