Skull bones Flashcards
What are fontanels
An infant is born with two major soft spots on the top of the head called fontanels. These soft spots are spaces between the bones of the skull where bone formation isn’t complete.
What are the areas wheree the bones interact
Sutures
What is A ?
Frontal
What is B ?
Sphenoid
What is C ?
Lacrimal (Left)
What is D ?
Nasal Bone
What is E ?
Zygomatic
What is F ?
Maxilla
What is G ?
Mandibal
What is H ?
Occipital
What is I ?
Parietal
What is J?
Temporal
What is 1 ?
Coronal Suture
What is 2?
Pterion
- Where most of the sutures of the bones converge.
What is 3?
Squamous suture
What is 4 ?
Lambdoid suture
What is 5 ?
Asterion
What is 6?
Mastoid Process
What is 7 ?
Styloid Process
What is A ?
Left Parietal
What is B?
Temporal Bone
What is C?
Maxilla
What is D ?
Occipital Bone
What is E?
Right parietal
What is 1 ?
Lambdoid suture
What is 2 ?
Lambda
Part where the two sutures meet
What is 3?
Saggital suture
What is A ?
Parietal Left
What is B ?
Occipital
What is C ?
Frontal
What is 1?
Coronal Suture
What is 2 ?
Lambdoid suture
What is 3?
Lambda
What is 4 ?
Saggital suture
What is 5 ?
Bregma
What is A?
Frontal
What is B?
Temporal
What is C?
sphenoid
What is D?
Maxilal
What is E?
Mandibula
What is F ?
Zygomatic
What is the weakest point of the skull and why?
Pterion - Union of multiple bones (Sphenoid, temporal, frontal, and parietal), so weakest point.
- Overlies the meningeal artery, so fracture can cause extradural haemorrhage.
What is the functional importance of the fontanelles in the fetus?
- They allow a child to get through childbirth; the bones can move over the top of one another.
- Shoulders can be manipulated.
