L2: Fetal Skull Flashcards
Regions of fetal head
- Base of skull
- face
- vault
Regions of fetal head
- Base of skull
Area from junction ( ) jaw & neck anteriorly to suboccipital region posteriorly.
Regions of fetal head
- Face
- Area from junction ( ) jaw & neck to supraorbital ridges & glabella (bony prominence ( ) 2 supraorbital ridges) & is bounded laterally by 2 ears.
Regions of fetal head
- Vault
Extent of Vault of skull (cranium)
Area from root of nose & supraorbital ridges to suboccipital region.
Bones of Vault of skull (cranium)
2 frontal bones, 2 parietal bones, 2 temporal bones, squamous portion of occipital bone & wings of sphenoid bones.
Sutures of Vault of skull (cranium)
Fontanelles of Vault of skull (cranium)
Compare bwtewwn Anterior fontanelle & Posterior fontanelle in terms of
- Size
- Shape
- Formation
- Surrounding Bones
- Floor
- Overriding
Regions of Vault of skull (cranium)
Brow (sinciput or forehead)
- Area from root of nose & supraorbital ridges to
anterior fontanelle & coronal sutures.
Vertex
Occipital region
Area ( ) posterior fontanelle & lambdoid sutures & line below occipital protuberance.
Longitudinal Diameters of Fetal Skull
Transverse Diameters of Fetal Skull
Length of Suboccipito-bregmatic (SOB)
Extent of Suboccipito-bregmatic (SOB)
Importnace of Suboccipito-bregmatic (SOB)
Length of Suboccipito-frontal (SOF)
Extent of Suboccipito-frontal (SOF)