Exam 4 LAB Flashcards
- hypoglossal canal
- tympano-occipital fissure
of the occipital bone
jugular foramen
tentorial process (covers cerebellum)
canal for trigeminal nerve
RED: jugular foramen
YELLOW: internal acoustic meatus
BLUE: canal for trigeminal n
what passes through the Tympano-occipital fissure
- Glossopharyngeal n. (CN IX)
- Vagus n. (CN X)
- Accessory n. (CN XI)
- Internal carotid a.
- Internal jugular v
difference between foramina and fissure
foramina= 1 bone with a hole in it
fissure= space between 2 bones
what passes through the Jugular foramen
- Glossopharyngeal n. (CN IX)
- Vagus n. (CN X)
- Accessory n. (CN XI)
what passes through the Internal acoustic meatus
- Facial n. (CN VII)
- Vestibulocochlear n. (CN VIII)
- petrosal part
- internal acoustic meatus
styloid foramen
what passes through the styloid foramen
facial nerve (CNVII)
- stylomastoid
- external acoustic meatus
- retroarticular foramen
- tympanic bulla
oval foramen
what passes through the oval foramen
3rd branch of trigeminal nerve maxillary n (CNV-2)
- preshenoid bone
- hypophyseal fossa in basiphenoid bone
- basisphenoid bone
- dorsum sallea
orbital fissure
what passes through the orbital fissure
what is this?
what passes through it
round foramen
2nd branch of trigeminal nerve, maxillary n. (CNV-2)
what is this?
what passes through it?
optic canal
optic n (CN II)
what is this
what passes through it
alar canal
second branch of trigeminal n., Maxillary n. (CNV2)
frontal sinus
perpendicular plate
chiasmatic groove