CN + skull: traveling and function Flashcards
what travels through the optic canal?
CN II, opthalmic artery
functional consequences of issues with optic canal?
blindness; visual field abnormalities, loss of pupillary contriction
what travels through foramen rotundum?
CN V: maxillary division V2
functional consequences of issues with foramen rotundum?
loss of sensation and pain in maxillary region; loss of motor function of the muscles of mastication ipsilaterally
what travels through the foramen ovale?
CN V: mandibular V3
functional consequences of issue with foramen ovale?
loss of sensation and pain in the mandibular region; loss of motor function of the muscles of mastication ipsilaterally
what travels through the foramen spinosum?
middle meningeal artery
functional consequences of issues with foramen spinosum?
epidural hematoma
what is in the foramen lacerum?
filed with cartilage for life
what travels through the groove for middle meningeal artery?
middle meningeal artery
functional consequences for issue with groove for middle meningeal artery?
epidural hematoma
what travels through the groove for superior petrosal sinus?
superior petrosal sinusw
functional consequences of issues with groove for superior petrosal sinus?
improper drainage
what travels through internal auditory meatus?
CN VII, CN VIII, labrynthine artery/vein
functional consequences of issues with internal auditory meatus?
CN VII: paralysis of face muscles, abnormal taste sensations; dry conjunctivae
CN VIII: hearing loss and tinnitus
what travels through the jugular foramen?
CN IX, CN X, CN XI, internal jugular vein
functional consequences of issues to jugular foramen?
CN IX: loss of taste and sensation of the soft palate
CN X: uvula deviation, vocal cord paralysis
CN XI: paralysis of neck muscles
Internal jugular: internal bleeding?
what travels through the sulcus for transverse sinus?
transverse sinus
functional consequences for issues with sulcus for transverse sinus?
improper drainage
what travels through hypoglossal canal?
CN XII
functional consequences of issues with hypoglossal canal?
weak tongue muscles deviation toward the affected side; speech disturbance
functional consequences of issues with stylomastoid foramen?
paralysis of face muscles, abnormal taste, dry conjuctivae
what travels through the foramen magnum?
spinal cord, vertebral arteries, CN XI roots
functional consequences with issues to foramen magnum?
paralysis, death, paralysis of neck muscles
what travels through the sulcus for superior sagittal sinus?
superior sagittal sinus
functional consequences of issues with sulcus for superior sagittal sinus?
improper drainage
what travels through the superior orbital fissure?
CN V - opthalmic V1, CN III, CN IV, CN VI, superior opthalmic vein
functional consequences of superior orbital fissure issues?
CN V: loss of sensation and pain the region supplied by the nerve - eye issues
CN III: dilated pupil, ptosis, loss of normal pupillary reflex, eye moves down and out
CN IV: inability to look down and in
CN VI: inability to move laterally
improper draining
what travels through the sylomastoid foramen?
CN VII
