Cranial Cavities and Meninges
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24 terms
Terms | Definitions |
|---|---|
 Optic Canal | Transmits -OPTHALMIC ARTERY -CN II/ Optic |
| Superior Orbital Fissure | Transmits -OPTHALMIC VEIN -CN III, IV, v1, VI |
| Foramen Lacerum | contains but DOES NOT transmit -INTERNAL CAROTID A. |
| Carotid Canal | Transmits -INTERNAL CAROTID A. |
| Foramen spinosum | Transmits -MIDDLE MENINGEAL A. |
| Cavernous Sinus contains | Internal carotid Artery CNs III, IV, v1, v2, VI |
| Cavernous Sinus receives blood from | superior and inferior ophthalmic vein superficial middle cerebral vein sphenoparietal sinus |
| Cavernous Sinus drains blood to | superior and inferior petrosal sinus pterygoid plexus |
| Jugular Foramen | transmits -Sigmoid sinus -CNs IX, X, XI |
| Foramen Magnum | Transmits -medulla oblongata -right and left vertebral arteries -spinal root of accessory nerve/ CN XI |
| CN I: Olfactory | cribriform plate SENSORY/olfaction |
| CN II: Optic | optic canal SENSORY/ vision |
| CN III: Occulomotor | superior orbital fissure MOTOR -eye movements (4 of 6 eye muscles) -pupil constriction -accomodation -lifts eyelid |
| CN IV: Trochlear | superior orbital fissure MOTOR/ eye movement- superior oblique muscle |
| CN v.1: Trigeminal-Opthalmic division | superior orbital fissure SENSORY -skin of the nose, eyelid, forehead and scalp -cornea -conjunctiva -nasal cavity -ethmoidal sinuses |
| CN v.2: Trigeminal- Maxillary division | Rotundum SENSORY -skin of the lateral nose, anterior cheek, upper lip, inferior eyelid -maxillary sinus -teeth -palate |
| CN V.3: Trigeminal- Mandibular division | Ovale SENSORY -lower lip, mandible, external ear, temporal region MOTOR -muscles of mastication, Mylohyoid, anterior belly of the digastric, tensor veli palatini, tensor tympani (my ass meets the toilet) |
| CN VI: Abducent | superior orbital fissure MOTOR-lateral rectus muscle |
| CN VII: Facial | Enters internal acoustic meatus- exits stylomastoid SENSORY -taste fibers to tongue (chorda tympani) and palate (greater pertrosal) MOTOR -muscles of facial expression (temporal, zygomatic, buccal, mandibular, cervical) -stapedius -posterior belly of the digastric -stylohyoid |
| CN VIII: Vestibulocochlear | internal acoustic meatus SENSORY/ Hearing and equilbrium |
| CN IX: Glossopharyngeal | Jugular SENSORY -carotid sinus (BP and gas) -general sensations of oropharynx, tongue, palatine tonsil -taste (posterior 1/3 of tongue) MOTOR -stylopharyngeus muscle (assists in swallowing) |
| CN X: Vagus | Jugular SENSORY -Pharynx, Larynx, thorax, abdomen, taste (root of tongue) MOTOR -soft palate, Pharynx, Laryngeal muscles (intrinsic), Palatoglosus |
| CN XI: Spinal accessory | Jugular MOTOR -cranial root- muscles of soft palate, pharynx, larynx -Spinal root- trapezius and sternocleidomastoid muscles |
| CN XII: Hypoglossal | Hypoglossal canal MOTOR -muscles of the tongue |
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