10 Questions
What is the outermost layer of the meninges that is tough, fibrous, and inextensible?
Periosteal layer
Which layer of the meninges is directly underneath the skull?
Periosteal layer
What is the function of the dura mater?
Protecting the brain from external forces
Which layer of the meninges is continuous with both cranial and spinal meninges?
Pia mater
Which layer of the meninges covers the brain and spinal cord?
Pia mater
Which layer of the meninges is relatively thin and fragile, adherent to the surface of the brain and spinal cord, and highly vascularised?
Pia mater
Which structure separates the right and left cerebral hemispheres by projecting downwards?
Falx cerebri
Which artery arises from branches of the external carotid artery to supply the dura mater of the anterior cranial fossa?
Anterior meningeal artery
Which sinuses communicate with the nasal cavity through small apertures and are lined by pseudostratified ciliated columnar epithelium/respiratory mucosa?
Ethmoid sinus
Which structure within the skull contains space anteromedially for passage of midbrain (tentorial notch) and separates occipital lobes from cerebellum?
Tentorium cerebelli
Test your knowledge on head injuries with a focus on anatomy of meninges and sinuses, types of head injuries, history taking, head trauma assessment, investigations, and management.
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