The term "neural arch" refers to a bony structure that surrounds the spinal cord and protects it from damage. The spelling of this word is derived from the Greek word "neuron" meaning nerve and "archos" meaning chief or ruler. In IPA phonetic transcription, the word is spelled /ˈn(j)ʊərəl ɑːrtʃ/, with stress on the first syllable. The "neur" sound is pronounced like "new-er" and the "al" sound is pronounced like "all." The "ch" sound is a voiceless velar fricative, similar to the sound at the end of the word "loch."
The neural arch is a key anatomical structure found in the vertebral column of vertebrates. It is an essential component of each individual vertebra, located dorsal to the vertebral body. The primary function of the neural arch is to enclose and protect the delicate spinal cord and the associated nerve tissues that run through the vertebral column.
The neural arch is typically composed of two distinct components: the pedicles and the laminae. The pedicles are bony structures that project from the vertebral body to form the sides of the arch. They serve as attachment points for ligaments and muscles, providing stability and support to the vertebra. Meanwhile, the laminae are thin, flat plates that extend from the pedicles and fuse together in the midline to enclose the spinal canal.
By forming a continuous bony ring, the neural arch acts as a shield for the spinal cord, shielding it from potential damage or injury. It also helps maintain proper alignment and spacing between the vertebrae, ensuring the stability of the spinal column as a whole. The neural arch works in close collaboration with other vertebral structures, such as the vertebral body, spinous processes, and articular processes, to facilitate vital functions like flexibility, movement, and weight-bearing.
In summary, the neural arch is an integral part of the vertebral column that plays a pivotal role in protecting the spinal cord while maintaining the structural integrity and functionality of the spine.
The dorsal a. of the typical vertebra, inclosing the cerebrospinal nervous system.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
That which protects part of the nervous systems.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "neural arch" is derived from a combination of Latin and Greek roots.
The term "neural" comes from the Greek word "neuron", meaning "nerve". It is often used to refer to anything related to the nervous system.
The word "arch" originates from the Latin word "arcus", which means "arch" or "bow". This term is often used to describe a curved or arched structure.
When combined, "neural arch" refers to the arched or curved portion of a vertebra that surrounds and protects the spinal cord. This bony structure is a part of the central vertebral column.