The body part of the fetus with the largest diameter
Head
What are the three most important part of the cranium bones
The frontal, 2parietal, and occipital
It is a fibrous joints connecting the bones of the skull.
Cranial sutures
It allows the bones to move and overlap
Molding
It’s a type of cranial sutures where it joins the two parietal bones
Sagittal suture
It’s a type of cranial suture; line of juncture to the frontal bones and the two parietal bones
Coronal suture
A juncture of the occipital bone and the two parietal bones
Lambdoid suture
A membrane covered spaces found at the juncture of the main switcher lines
Fontanelles
A diamond- shaped fontanelle that closes at 18 months
Anterior fontanelle or bregma
A triangular and smaller than the bregma fontanelle that closest at 2 to 3 months
Posterior fontanelle or lambda
A space between the fontanelles
Vertex
Refers to change in the shape of the fetal skull produced by the force of the uterine contractions
Molding
How many days does molding usually lasts?
Lasts only a day or 2
Narrowest about 9.5 cm from the inferior aspect of the occiput to the center of the anterior fontanelle
Suboccipital bregmatic diameter
About 12 cm measured from the bridge of the nose to the occipital prominence
Occipito frontal diameter
This is the widest measurement anterior posterior diameter 13.5 measure from the chain to the posterior fontanelle
Occipito mental diameter
A flexion in which the chin rests on the thorax; suboccipitobregmatic diameter
Full flexion
An accipitofrontal diameter is presented; what flexion is this?
Moderate flexion
It is a type of flexion which the head is hyperextended or the diameter is occipital mental diameter
Poor flexion
If the presenting part is not yet engaged
Floating
The presenting part is descending but not yet reach the ischial spines
Dipping
It is the relationship between the long axis of the fetal body and the long axis of the woman’s body
Fetall lie
It refers to the relationship of the presenting part of the fetus to the level of the ischial spines
Station