How Do You Spell SCHREGER'S LINES?

Pronunciation: [ʃɹˈɛd͡ʒəz lˈa͡ɪnz] (IPA)

Schreger's lines are a noticeable pattern in the structure of animal teeth and ivory. They are named after German anatomist, Franz von Schreger, who first described them in 1800. The phonetic transcription of the word "Schreger's" is /ˈʃreɪɡərz/. The first syllable is pronounced with a "sh" sound followed by a long "a" sound. The second syllable is pronounced with a "g" sound, followed by a short "e" sound and then an "r" sound. Finally, the last syllable is pronounced with a "z" sound.

SCHREGER'S LINES Meaning and Definition

  1. Schreger's lines, also known as lines of reticulation or Hunter-Schreger bands, are a characteristic feature found in the dentin of mammalian teeth, particularly in the incisors of terrestrial herbivores. These lines were named after Johann C. Schreger, a German anatomist and physician who first described them in 1800.

    Schreger's lines are alternating dark and light bands that occur along the thickness of the dentin. They are most pronounced in the crown region of the tooth, where they appear as a series of zig-zag patterns. These lines are formed by the arrangement of dentinal tubules within the dentin matrix. Dentinal tubules are microscopic channels that run from the pulp chamber to the enamel or cementum, and they contain odontoblast cells responsible for producing dentin.

    The orientation of Schreger's lines can provide valuable information about the anatomy and morphology of the tooth. In most species, including humans, the lines intersect at an angle of approximately 90 degrees, producing a complex crossed pattern. However, the specific pattern and angle of intersection can vary among different species.

    The study of Schreger's lines has practical applications in paleontology, archaeology, and forensic science. By analyzing the direction and angle of these lines, scientists can determine the type of tooth, species, and sometimes even age of an animal. This information plays a crucial role in understanding evolutionary relationships, reconstructing paleoenvironments, and identifying animal remains in forensic investigations.

  2. Concentric lines caused by a bending of the dentinal tubules near the surface of the dentine.

    A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for SCHREGER'S LINES

  • achreger's lines
  • zchreger's lines
  • xchreger's lines
  • dchreger's lines
  • echreger's lines
  • wchreger's lines
  • sxhreger's lines
  • svhreger's lines
  • sfhreger's lines
  • sdhreger's lines
  • scgreger's lines
  • scbreger's lines
  • scnreger's lines
  • scjreger's lines
  • scureger's lines
  • scyreger's lines
  • scheeger's lines
  • schdeger's lines
  • schfeger's lines
  • schteger's lines

Etymology of SCHREGER'S LINES

The term "Schreger's lines" is named after a German anatomist and anthropologist named Christoph Schreger (1768-1836). He was known for his work in studying the structure of animal horns and tusks, including those of elephants. Schreger specifically studied the pattern of cross-hatching lines that can be observed in the dentin of an elephant's tusk when viewed in cross-sections. These lines, named in his honor, are now known as "Schreger's lines". They are used to analyze and determine the age of elephant ivory, as the angle and spacing of the lines change as the animal ages.

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