Anatomy General obstetrics 67c3da3a

Denominator refers to:

Pa of the presentation which lies over the Internal os

Relation of different pas of fetus to one another

Bony fixed point of reference on presenting pa

Pa of fetus lying in the lower segment of uterus

High-Yield Explanation

Denominator : It is an arbitrary bony fixed point on the presenting pa which comes in relation with the various quadrants of maternal pelvis. Denominators in different presentations : Occiput in veex Mentum in chin Frontal eminence in brow Sacrum I'm breech Acromion in shoulder. Ref: Datta Obs 9e pg 70.

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