Cranium Flashcards
Anterior Cranial Fossa
Frontal Lobe of Brain
Cribriform foramina in cribriform plate
Axon of olfactory epithelium that form olfactory nerve (CN I)
Middle Cranial Fossa
Temporal lobes of brain
Optic canals
Optic nerves (CN II) and ophthalmic arteries
Superior orbital fissure
ophthalmic veins, ophthalmic nerve (CN V1), Oculomotor nerve (CN III), trochlear nerve (CV IV) and abducens nerve (CNVI), and sympathetic fibers
Foramen Rotundum
Maxillary Nerve (CN V2)
Foramen Ovale
Mandibular Nerve (CN V3)
Foramen Spinosum
Middle meninges artery/ vein
Foramen Lacerum
Nothing passes through but opening is transversed by internal carotid artery
Carotid Canal
Internal Carotid artery, sympathetic fibers
Posterior Cranial Fossa
Cerebellum, pons, and medulla oblongata
Foramen Magnum
Spinal Cord and meninges, vertebral arteries, Duran veins , anterior and posterior spinal arteries
Jugular Foramen
Glossopharyngeal nerve (CN IX), vagus nerve (CN X), spina accessory nerve (CN XI), internal jugular vein, inferior petrosal and sigmoid sinuses
Hypoglossal canal
Hypoglossal nerve (CN XII)
Internal auditory meats
Facial (CN VII) and vestibulocochlear nerves (CN VIII)
Dura matter
Tough, thick, external fibrous layer
Arachnoid matter
Thin, non vascular, intermediate layer
Subdural Space
Potential space
Subrachnoid space
Contains cerebral spinal fluid
Pia matter
Delicate internal vascular layer
Falafel cerebri
Largest Duran infolding, separates the right and left cerebral hemispheres
Tentorium Cerebeli
Separates the occipital lives of the cerebral hemispheres from the cerebellum. Divides the cranial cavity into supratentorial and infratentorial compartments
Falls cerebelli
Partially separates the cerebellum hemisphere
Diaphragm sallae
Circular extension that forms a partial roof over the hypophyseal fossa
