Explains the three cranial fossae that make up the uneven internal floor of the skull: the anterior, middle and posterior fossae. For each, it lists the bones forming it, the brain parts it holds, and the foramina and canals that transmit vessels and cranial nerves. A table summarises the three fossae, and the middle fossa section highlights the sella turcica and cavernous sulcus.
Topic 7 of 236 in the MU Pleven syllabus for Anatomy Bones and Muscles (Medicine, Year 2). The free AceMed note covers it in 4 sections, about 228 words (2 min of reading), with 15 flashcards.
In this note
INTERNAL SURFACE OF THE CRANIAL BASE
ANTERIOR CRANIAL FOSSA
MIDDLE CRANIAL FOSSA
POSTERIOR CRANIAL FOSSA
INTERNAL SURFACE OF THE CRANIAL BASE
THE CRANIAL CAVITY FLOOR (BASE) IS IRREGULAR AND DIVIDED INTO 3 CRANIAL FOSSAE
ANTERIOR CRANIAL FOSSA
BONES FORMING IT : ORBITAL PLATES OF FRONTAL BONE [LATERALLY]
CRIBRIFORM PLATE OF ETHMOID (IN MIDLINE, WITH CRISTA GALLI)
