Sutures Of Skull

Human skull has around 20 Sutures which means that the number of bones fusing together to form sutures are 40 and including the number of single bones in the Skull the number of bones in the human Skull during birth are 45 and the number of bones in adulthood are 22 bones.

Sutures:

Def: Sutures are Junctions or lines of articulation between adjacent bones of skull

What is a Suture:

A suture is a type of fibrous joint which only occurs in the skull (or “cranium”). They are bound together by Sharpey’s fibres. A tiny amount of movement is permitted at sutures, which contributes to the compliance and elasticity of the skull.

What are the various Sutures Present in the Skull:

  1. Coronal suture – Junction between frontal and parietal bones
  2. Lambdoid suture – Junction between parietal and occipital bones
  3. Occipitomastoid suture – Junction between sphenoid and temporal bones
  4. Parietomastoid suture – Junction between parietal and temporal bones
  5. Sphenofrontal suture – Junction between sphenoid and frontal bones
  6. Sphenoparietal suture – Junction between sphenoid and parietal bones
  7. Sphenosquamosal suture – Junction between sphenoid and temporal bones
  8. Sphenozygomatic suture –  Junction between sphenoid and zygomatic bones
  9. Squamosal suture – Junction between the parietal and the temporal bone
  10. Zygomaticotemporal suture – Junction between Zygomatic and temporal bones
  11. Zygomaticofrontal suture – Junction between Zygomatic and Frontal bone

 

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