QuestionSBA
QuestionChoice
The sutures between individual skull bones persist until the neurocranium and viscerocranium reach adult morphology at around 21 years old and ossify after this, mostly completed by around the 5th decade.
10027098
c
The sutures between individual skull bones persist until the start of puberty when they ossify
QuestionChoice
The temporal suture is located between the temporal and parietal bones, on the lateral side of the skull.
10027097
b
The temporal suture is located between the temporal bone and the occipital bone
QuestionChoice
Fontanelles are present to allow deformation of the skull during birth and to accommodate postnatal growth of skull bones and the developing brain. They are placed in the areas of most growth in the skull vault- the midsagittal line and between the temporal/occipital bones, and mostly close within the first year of life.
10027096
a
The fontanelles, large membranous-filled gaps between skull bones, close mostly in the first year of life
QuestionChoice
The maxillary trigeminal nerve exits the intracranial space through the foramen rotundum in the sphenoid bone. The mandibular branch of the trigeminal nerve exits through the foramen ovale.
10027099
d
The maxillary trigeminal nerve leaves the intracranial space through the foramen ovale in the sphenoid bone
QuestionChoice
The pterion is the area at which the sutures between the frontal, sphenoid, parietal and temporal bones converge. As it is the point where several bones meet, it is structurally weak. Deep to the pterion is the middle meningeal artery- fracture to the skull at this point often leads to an extradural haematoma.
10027100
e
The sutures between the frontal, temporal, sphenoid and ethmoid bones meet at the pterion, causing this area to be structurally weak
Concept
Chapter
2693
5954
Basal skull fracture
Topic
186
Ear, Nose and Throat
17817
Which statement correctly describes an aspect of the bony anatomy of the skull?
a