CN + skull: traveling and function

Question 1

what travels through the optic canal?

Answer 1

CN II, opthalmic artery

Question 2

functional consequences of issues with optic canal?

Answer 2

blindness; visual field abnormalities, loss of pupillary contriction

Question 3

what travels through foramen rotundum?

Answer 3

CN V: maxillary division V2

Question 4

functional consequences of issues with foramen rotundum?

Answer 4

loss of sensation and pain in maxillary region; loss of motor function of the muscles of mastication ipsilaterally

Question 5

what travels through the foramen ovale?

Answer 5

CN V: mandibular V3

Question 6

functional consequences of issue with foramen ovale?

Answer 6

loss of sensation and pain in the mandibular region; loss of motor function of the muscles of mastication ipsilaterally

Question 7

what travels through the foramen spinosum?

Answer 7

middle meningeal artery

Question 8

functional consequences of issues with foramen spinosum?

Answer 8

epidural hematoma

Question 9

what is in the foramen lacerum?

Answer 9

filed with cartilage for life

Question 10

what travels through the groove for middle meningeal artery?

Answer 10

middle meningeal artery

Question 11

functional consequences for issue with groove for middle meningeal artery?

Answer 11

epidural hematoma

Question 12

what travels through the groove for superior petrosal sinus?

Answer 12

superior petrosal sinusw

Question 13

functional consequences of issues with groove for superior petrosal sinus?

Answer 13

improper drainage

Question 14

what travels through internal auditory meatus?

Answer 14

CN VII, CN VIII, labrynthine artery/vein

Question 15

functional consequences of issues with internal auditory meatus?

Answer 15

CN VII: paralysis of face muscles, abnormal taste sensations; dry conjunctivae

CN VIII: hearing loss and tinnitus

Question 16

what travels through the jugular foramen?

Answer 16

CN IX, CN X, CN XI, internal jugular vein

Question 17

functional consequences of issues to jugular foramen?

Answer 17

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?

Question 18

what travels through the sulcus for transverse sinus?

Answer 18

transverse sinus

Question 19

functional consequences for issues with sulcus for transverse sinus?

Answer 19

improper drainage

Question 20

what travels through hypoglossal canal?

Answer 20

CN XII

Question 21

functional consequences of issues with hypoglossal canal?

Answer 21

weak tongue muscles deviation toward the affected side; speech disturbance

Question 22

functional consequences of issues with stylomastoid foramen?

Answer 22

paralysis of face muscles, abnormal taste, dry conjuctivae

Question 23

what travels through the foramen magnum?

Answer 23

spinal cord, vertebral arteries, CN XI roots

Question 24

functional consequences with issues to foramen magnum?

Answer 24

paralysis, death, paralysis of neck muscles

Question 25

what travels through the sulcus for superior sagittal sinus?

Answer 25

superior sagittal sinus

Question 26

functional consequences of issues with sulcus for superior sagittal sinus?

Answer 26

improper drainage

Question 27

what travels through the superior orbital fissure?

Answer 27

CN V - opthalmic V1, CN III, CN IV, CN VI, superior opthalmic vein

Question 28

functional consequences of superior orbital fissure issues?

Answer 28

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

Question 29

what travels through the sylomastoid foramen?

Answer 29

CN VII