The meningocele is a protrusion of a spinal fluid-filled sac of meninges through a bony defect in the posterior elements of the spine without associated neural tissue herniation.
What is the medical term for a hernia of the membranes that surround the brain and spinal cord?
A meningomyelocele describes herniation of the brain out of the skull. herniation of protective membranes surrounding the brain.
Is the congenital herniation of the meninges through a defect in the skull or spinal column group of answer choices?
Meningocele: A type of spina bifida characterized by herniation of the meninges through a spine defect, forming a cyst filled with cerebrospinal fluid. It does not contain the spinal cord, but can have some nerve elements.
What term means congenital herniation of brain tissue through a gap in the skull?
Summary. Encephaloceles are rare birth defects associated with skull defects characterized by partial lacking of bone fusion leaving a gap through which a portion of the brain sticks out (protrudes). In some cases, cerebrospinal fluid or the membranes that cover the brain (meninges) may also protrude through this gap.
What is brainstem herniation?
Expand Section. Brain herniation occurs when something inside the skull produces pressure that moves brain tissues. This is most often the result of brain swelling or bleeding from a head injury, stroke, or brain tumor.
What is the herniation of the brain through an opening in the skull?
A brain herniation, or cerebral herniation, occurs when brain tissue, blood, and cerebrospinal fluid (CSF) shifts from their normal position inside the skull. The condition is usually caused by swelling from a head injury, stroke, bleeding, or brain tumor.
What is a protrusion of the meninges and spinal cord?
The protrusion of both the meninges AND the spinal cord through an opening in the spinal column is the disease called Spina Bifida.
What is a congenital herniation of the meninges?
n. a congenital herniation (protrusion) of the meninges (the three membranous layers that cover the brain and spinal cord) through an abnormal opening in the skull or spinal cord, with seepage of cerebrospinal fluid into the protrusion.
Which is also known as wryneck is caused by a viral infection?
Acquired torticollis may be caused by irritation to the cervical ligaments from a viral infection, injury, or vigorous movement.
What is congenital herniation of the meninges?
Which term means congenital herniation of meninges through a defect in the skull or spinal column?
Meningoencephalocele – A protrusion of both the meninges and brain tissue through a skull defect; one form of spina bifida.
What is a herniated spinal cord and meninges?
hernial protrusion of the spinal cord and its meninges through a defect in the vertebral arch ( spina bifida ); see also neural tube defect. Called also meningomyelocele. Child with a large thoraco-lumbar myelomeningocele consisting of protruding spinal cord covered by meninges. From Mueller and Young, 2001.
What is the difference between cranial and spinal meninges?
Based on their location, meninges are referred to as the cranial meninges which envelop the brain, and spinal meninges which envelop the spinal cord. However, the cranial and spinal meninges are continuous with each other and consist of the same three meningeal layers.
What does meningomyelocele mean in medical terms?
[mi″ĕ-lo-mĕ-ning´go-sēl] hernial protrusion of the spinal cord and its meninges through a defect in the vertebral arch (spina bifida); see also neural tube defect. Called also meningomyelocele. Child with a large thoraco-lumbar myelomeningocele consisting of protruding spinal cord covered by meninges.
What is the etymology of the word hernia?
[mī′əlō′məning′gōsēl] Etymology: Gk, myelos + menix, membrane, kele, hernia. a developmental defect of the central nervous system in which a hernial sac containing a portion of the spinal cord, its meninges, and cerebrospinal fluid protrudes through a congenital cleft in the vertebral column.
