Page 177 - ترم ثاني كتاب تمريض صحة الام الكتروني

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measured from the occipital protuberance to the root of the nose.
It is the diameter of engagement, in occipito-posterior position.
4.The mento-vertical diameter (13.75 cm).

measured from the tip of the chin to the vertical point, which is the point at the
middle of sagittal suture. It is the diameter of engagement in brow presentation.

5.The submento-bregmatic diameter (9.5 cm).
measured from the junction of chin and neck to the center of the anterior fontanelle.
It is the engaging diameter in face presentation when the head is completely
extended.

6.The submento-vertical diameter (11.5 cm).
measured from the junction of the chin and neck to the vertical point.
It is the diameter of engagement in face presentation

When the head is not completely extended. It is also the diameter
Which distends the vulva during delivery of face presentation?

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