Scalp, Skull, Cranial Contents Flashcards
(19 cards)
Anterior cranial fossa relations
Olfactory bulbs, falx cerebri, frontal poles of cerebral hemispheres
Middle cranial fossa relations
Temporal lobes of cerebral hemispheres, optic nerve, chiasm, and tract, pituitary, diaphragma sella, cavernous sinus, internal carotid artery, circle of willis, cranial nerves III, IV,V, VI
Posterior cranial fossa relations
Cerebellum, pons, medula, CN VI-XII, tentorium cerebelli, vertebral, artery system
Sella turcica
Includes parts of sphenoid bone and the pituitary gland lies inside
Cribiform plate (structire that passes through)
Olfactory nerve
Optic foramen
Optic nerve, ophthalmic artery
Superior orbital fissure
oculomotor, troclear, abducens, ophthalmic division of trigeminal (V1) nerves. Ophthalmic veins and sympathetic nerves
Carotid canal
Internal carotid artery and postganglionic sympathetic fibers travelling as carotid plexus
Foramen lacerum
internal carotid artery superior to fibrocartilage after entering skull through carotid canal
Foramen rotundum
Maxillary division of trigeminal nerve (V2)
Foramen ovale
Mandibular division of trigemnal (V3), motor root of CN V, accessory meningeal artery
Foramen spinosum
Middle menigeal artery
Internal acoustic meatus
Facial nerve, vestibulocochlear nerve, labyrinthine artery
Jugular foramen
Sigmoid sinus, glossopharyngeal nerve, vagus nerve, accessory nerve
Hypoglossal canal
Hypoglossal nerve
Foramen magnum
Spinal cord, vertebral arteries, anterior and posterior spinal arteries, spinal origin of accessory nerve
Vertex
Highest pt on skull
Pterion
thinnest part of the lateral wall of the skull, overlies middle meningeal artery
Glabella
Smooth eminence above the nasion and between superciliary arches
