Cerebral Cranium Flashcards
What is the frontal bone responsible for?
Forms the forehead, roof of the orbits, and the anterior cranial cavity
The glabella is the bump between the superciliary arches.
What is the glabella?
Bump between the superciliary arches
It is located on the frontal bone.
What is the supraorbital foramen?
Opening through which nerves and vessels enter/exit, immediately above the superciliary arches
It is part of the frontal bone.
What is the frontonasal suture?
Where the frontal bone articulates with the nasal bone (nasion)
This suture is located on the anterior part of the skull.
What are frontal sinuses?
Air filled cavity that provides resonance in speech
They are located within the frontal bone.
How many parietal bones are there?
2
They form the superior and lateral walls of the cranium.
What is the shape of the parietal bones?
Rectangular with a concave inner surface
They meet at the midline of the body.
How many temporal bones are there?
2
They form the inferior lateral aspects of the cranium.
What is the external auditory meatus (EAM)?
External canal of the ear; carries sound to the internal ear
It is a feature of the temporal bone.
What is the mastoid process?
Posterior and inferior to the external auditory meatus; a round cone-shaped projection filled with air cells
It is palpable and located on the temporal bone.
What is the styloid process?
A thin long projection on the inferior temporal bone for attachment of muscles of the tongue and throat
It is part of the temporal bone.
What is the mandibular fossa?
The articulation point between the mandible and the skull (TMJ)
It is located on the temporal bone.
What is the zygomatic process?
Area where the temporal bone meets the zygomatic bone
It is part of the temporal bone.
What is the zygomatic arch?
Bridge of bone from the cheek to the anterior portion of the ear
It serves as an attachment for muscles of the tongue and throat.
What is the carotid canal?
Canal through which the internal carotid artery enters the cranial vault
It is part of the temporal bone.
What is the petrous portion of the temporal bone?
Thick ‘rocky’ portion of the temporal bone that contains the middle ear, inner ear, and mastoid air cells
It is also known as the pars petrosa.
What is the occipital bone?
Most posterior bone, forms the posterior wall and the base of the cranium
It articulates with the parietal bones.
What is the external occipital protuberance?
A prominent bump on the occipital bone
It serves as a muscle attachment point.
What is the foramen magnum?
Largest foramen, where the brainstem/medulla oblongata exits
It is located in the occipital bone.
What are the articular processes/condyles?
Structures on either side of the foramen magnum that articulate with the cervical vertebrae
They are part of the occipital bone.
What is the jugular foramen?
Foramen through which the internal jugular vein exits the skull
It is located in the occipital bone.
