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Related Concept Videos

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Sutures of the Skull

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The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
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The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
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Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
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Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
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Human development is typically examined across three main domains: physical, cognitive, and socio-emotional. These domains represent the significant areas of change and continuity throughout the lifespan, from infancy to late adulthood.
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Considering the tensile strength of concrete involves recognizing that the theoretical strength of cement paste can be up to a thousand times higher than what is observed in practical applications. This significant discrepancy is largely attributed to the presence of microscopic cracks within the concrete. These cracks tend to amplify stress at their tips when a load is applied, a phenomenon explained by Griffith's theory of brittle fracture.
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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
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Developmental Considerations in Pediatric Skull Base Surgery.

Melissa A LoPresti1, Jonathan N Sellin1, Franco DeMonte2

  • 1Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, United States.

Journal of Neurological Surgery. Part B, Skull Base
|February 7, 2018
PubMed
Summary
This summary is machine-generated.

Pediatric skull base surgery requires deep anatomical knowledge. This study reviews developmental anatomy and surgical techniques, finding similar outcomes between historical and recent patient cohorts.

Keywords:
developmental anatomypediatric skull basesurgery

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Area of Science:

  • Pediatric neurosurgery
  • Surgical anatomy
  • Oncology

Background:

  • Pediatric skull base tumors are rare but often require surgical intervention.
  • Understanding the developing anatomy is crucial for surgical success.
  • A 25-year institutional experience provides valuable insights.

Purpose of the Study:

  • To review developmental surgical anatomy of the pediatric skull base.
  • To analyze technical nuances in pediatric skull base surgery.
  • To correlate anatomical understanding with surgical outcomes.

Main Methods:

  • Retrospective, single-center case series.
  • Literature review of developmental anatomy.
  • Analysis of 39 patients from 2003-2016, compared to an earlier cohort (1992-2002).

Main Results:

  • Common benign tumors: nerve sheath tumors, juvenile nasopharyngeal angiofibromas, craniopharyngiomas.
  • Common malignant tumors: chondrosarcoma, chordoma, rhabdomyosarcoma.
  • Increased use of endoscopic techniques noted in the recent cohort; resection and complication rates were similar.

Conclusions:

  • Surgical treatment of pediatric skull base tumors necessitates a thorough understanding of pediatric skull base anatomy.
  • Outcomes remain consistent despite evolving surgical techniques.
  • Continued focus on anatomical detail is vital for this patient population.