Fetal Osteology Flashcards
1. Identify the names of the joints between fetal cranial bones 2. Identify the process the skull undergoes while engaged in the birth canal and during vaginal delivery 3. Identify the clinical significance of either a sunken or a raised fetal fontanelle
The fetal skull begins to develop at ____ weeks
4
Fontanelles and connective tissue allow for the passage of skull through
Vagina by sliding over another to decrease surface area
Overlapping of adjacent bones of the fetal skill during passage through the birth canal
Molding
Soft spot of the fetal skull
Fontanelle
____ allows for molding to occur
Fontanelle
This allows for the connection of fontanelles and is attached to growing cranial bones
Connective tissue membrane
Overlies venous and CSF (cerebrospinal fluid) drainage routes
Connective tissue of Fontanelle
The Fetal Skull has _ fontanelles
6
Out of the 6 fontanelles, _ are paired and _ are unpaired
4, 2
The 2 unpaired fontanelles are
Frontal/Anterior
Occipital/Posterior
Most prominent fontanelle, diamond shaped, located in coronal suture
Frontal/Anterior fontanelle
This fontanelle is located in the lambdoid suture
Occipital/Posterior fontanelle
Occipital bone is located within what suture
Lambdoid suture
The Frontal/Anterior Fontanelle is located within what suture?
Coronal suture
Paired Fontanelles
Sphenoidal/Anterolateral Fontanelle
Mastoid/Posterolateral Fontanelle
This fontanelle is located on either side of the skull (left and right sides)
Sphenoidal/Anterolateral Fontanelle
This fontanelle is located between temporal, parietal, and occipital bones
Mastoid/Posterolateral Fontanelle
Sphenoidal fontanelle is located around the
Ear
Mastoidal Fontanelle is lovated near the
Base of the skull by occipital bone
Anterior fontanelle is located at
The anteriocentral portion of the skull, creating a crown looking shape across.
Occipital fontanelle is located
Just superior to the occipital bone
Sunken Fontanelle is a sign of
Dehydrated baby or suffering failure to thrive
Sunken Fontanelle may indicate
Lack of appropriate venous blood volume or low intracranial pressure
Raised/pulsating fontanelle may indicate
Increased intracranial pressure or poor drainage of venous blood or swelling of the brain
