microteaching on fetal skull
TRANSCRIPT
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PRESENTED BY:ABHILASHA VERMA
M.Sc. Prev.
PRESENTATION
ON
FETAL SKULL
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FETAL SKULL
SHAPE - OVAL
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AREAS OF FETAL SKULL
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BONES OF FETAL SKULL
• FRONT SIDE • BACK SIDE
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SUTURE OF FETAL SKULL
“Space between skull bones”
1. Frontal suture
2. Saggital suture
3. Coronal suture
4. Lambdoid suture
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FONTANELLS
“ Wide gap between suture line where 2 or more suture are meet”
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LANDMARKS OF FETAL SKULL
1. Occiput
2. Lambda
3. Vertex
4. Parietal eminance
5. Bregma
6. Siniciput
7. Glabella
8. Nasion
9. Mentum
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TRANSVERSE DIAMETERS
1) Biparietal Dm [9.5 cm]:
Distance between parietal eminances.
2) Bitemporal Dm [ 8.5 cm]
Distance between lateral side of temporal bone or coronal suture.
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ANTERIOR- POSTERIOR DIAMETER
1. SUB-OCCIPUTO BREGMATIC DIAMETER [9.5 CM]
From below occipital protuberance to center of anterior fontanelle.
2. SUB-OCCIPUTO FRONTAL DIAMETER [10 CM]
From below occipital protuberance to center of frontal suture.
3. OCCIPUTO FRONTAL DIAMETER [ 11.5 CM]
From occipital protuberance to glabella.
4. MENTO-VERTICLE DIAMETER [ 14 CM]
From chin to vertical point.
5. SUBMENTO VERTICAL DIAMETER [ 11.5 CM]
From junction of mouth and neck to highest point of vertex.
6. SUBMENTO BREGMATIC [ 9.5 CM]
From junction of neck and lower jaw to bregma.
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PRESENTING DIAMETER OF FETAL HEAD
VERTEX PRESENTATION
* SOB & BP [ 9.5 cm]
BROW PRESENTATION
MV [14 cm] & BT [ 8.5 cm]
FACE PRESENTATION
SMB [9.5 cm] & BT [8.5 cm]
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MOULDING “ It is reduction in the diameter of fetal skull which
encourage progress of delivery to rigid maternal pelvis without harming fetal brain.”
Skull bones are over ride each other and reduce head circumference.
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