Fetal Skull Diagrams with Landmarks PDF
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This document presents diagrams and measurements of the fetal skull, including bones, sutures, and fontanelles. It displays various views and presentations of the fetal skull in a detailed manner for medical or biological study. It does not reference any specific exam board or year.
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## 1.7 THE FETAL SKULL ### Figure 1.7.1 - **Diagram showing the bones, sutures and fontanelles of the fetal skull** | Posterior | Anterior | |---|---| | Occipital bone | Frontal Bone | | Parietal bone | Temporal bone | | Lambdoidal suture | Sagittal suture | | Temporal suture | Coronal suture | |...
## 1.7 THE FETAL SKULL ### Figure 1.7.1 - **Diagram showing the bones, sutures and fontanelles of the fetal skull** | Posterior | Anterior | |---|---| | Occipital bone | Frontal Bone | | Parietal bone | Temporal bone | | Lambdoidal suture | Sagittal suture | | Temporal suture | Coronal suture | | Posterior fontanelle (lambda) | Anterior fontanelle (bregma) | ### Figure 1.7.2 - **Diagram showing sutures and fontanelles of the fetal skull** ### Figure 1.7.3 - **The areas and landmarks of the fetal skull** | Posterior | Anterior | |---|---| | Occipital protuberance | Vertex | | Sub-occipital area | Bregma | | Parietal | Temple | | | Eminence | | | Sinciput or brow | | | Glabella | | | The face | | | Root of the nose (nasion) | | | Mentum (chin) | | | Submental area | ### Figure 1.7.4 - **Diagram showing the transverse diameters and measurements of the fetal skull** - **DIAGRAM SHOWING THE TRANSVERSE DIAMETERS AND MEASUREMENTS OF THE FETAL SKULL AND SHOWING MOULDING CAUSING OVER-RIDING OF THE SKULL BONES AND THE REDUCTION OF SKULL DIAMETERS** | Posterior | Anterior | |---|---| | Bi-parietal diameter 9,5 cm | Bi-temporal diameter 8,2 cm | | Right | Left | **Vertex presentation** * Note: How the one parietal bone slips over the other parietal bone. * How the parietal bones over-ride the occipital bone and the frontal bones. * How one frontal bone slips over the other frontal bone. ### Figure 1.7.5 - **Diagrams showing the measurements of the fetal skull: antero-posterior diameters** - **S.O.B. = 9,5 cm = Fully flexed vertex presentation: occipito-anterior position.** - **S.O.F. = 10 cm = Slightly deflexed vertex presentation: occipito-posterior position.** - **O.F. = 11,5 cm = Defiexed vertex presentation: persistant occipito-posterior position.** - **S.M.B. = 9.5 cm = Fully extended face presentation: mento-anterior position.** - **S.M.V. = 11,5 cm = Not fully extended face presentation.** - **M.V. = 13,5 cm = Midway between deflexion and extension, brow presentation.**
