Skull And Vasculature Flashcards
What are the 2 parts of the skull?
Cranium
Facial skeleton
True or False. Bones of the skull are only formed by endochondral ossification.
False. They are formed by BOTH intramembranous and endochondral ossification.
These are membranous areas between bones of the skull that allow for growth in babies.
Fontanelles
How many soft spots does a baby have? They are?
2- Anterior and posterior
The anterior fontanelle separates which 2 bones?
Frontal
Parietals
The posterior fontanelle separates which 2 bones?
Parietal
Occipital
Which fontanelle closes FIRST?
Posterior
These are fibrous joints between bones of the skull that ossify in adults.
Sutures
How many sutures are there? They are?
3
Coronal
Sagittal
Lambdoid
The coronal suture separates which bones?
Frontal
Parietals
The sagittal suture separates which 2 bones?
Parietals
The Lambdoid suture separates which 2 bones?
Parietals
Occipital
This is the intersection of the coronal and sagittal sutures.
Bregma
This is the intersection of the sagittal and Lambdoid sutures.
Lambda
This is a disorder in which the sutures close prematurely.
Craniosynostosis
This is another name for the skull-cap.
Calvaria
The skull-cap is made of how many bones? They are?
4- frontal, 2 Parietals, occipital
This is the site most prone to fractures on the skull. What is its function?
Pterion- frontal, parietal, temporal and sphenoid bones meet
The zygomatic process is a feature of which bone? What does it articulate with?
Temporal
Zygomatic bone
The external acoustic meatus is a feature of which bone?
Temporal
The mastoid process is a feature of which bone?
Temporal
The styloid process is a feature of which bone?
Temporal
The foramen between the styloid and mastoid processes is called? What structures does it convey?
Stylomastoid foramen
CNVII/Facial
The place where the mandible articulates with the skull is called? It’s a feature of which bone?
Mandibular fossa
Temporal
This hole conveys the internal carotid artery. What bone is it part of?
Carotid canal
Temporal
The carotid canal conveys a vessel into which cranial fossa?
Middle cranial fossa
This hole conveys an important vein in the brain. What is it? What bone? Which vein?
Jugular foramen
Temporal
Internal jugular vein
The jugular foramen conveys which 4 important structures?
IJV
CNIX/glossopharyngeal
CNX/vagus
CNXI/accessory
This structure is a bony prominence superior to the nasal passage and in between the eyes. What bone is it part of?
Glabella
Frontal
There are 6 bones that make up the face. They are?
2 nasal bones
2 maxillae bones
2 zygomatic bones
Which bone contains the upper teeth?
Maxilla
Which bone contains the lower teeth?
Mandible
This bony structure is the point where the chin juts out. What bone?
Mental protuberance
Mandible
This hole is in the upper part of the eye socket. What is it? What bone? What does it convey?
Supra orbital foramen
Frontal
Supraorbital nerve and vessels
This hole is inferior to the eye socket and just medial to the nasal passage. What is it? What bone? What does it convey?
Infra orbital foramen
Maxilla
Infraorbital nerve and vessels
This hole is located on either side of the midline on the chin. What is it? Which bone? What does it convey?
Mental foramen
Mandible
Mental nerve and vessels
How does the skull articulate with the neck?
Via occipital condyles that articulate with superior articular facet of the atlas
What 3 structures travel through the foramen magnum?
Brainstem/spinal cord
CNXI/accessory
Vertebral arteries