Major Foramina, Fissures, and Canals of Skull

Question 1

Mental Foramina

Answer 1

Branches of the inferior alveolar a, v, n

Question 2

Mandibular Foramen

Answer 2

Branches of the inferior alveolar a, v, n

Question 3

Mandibular Canal

Answer 3

Inferior alveolar a, v, and n

Question 4

Palatine Fissure

Answer 4

Anastomoses between the palatine and the
infraorbital and nasal aa and vv

Question 5

Major Palatine Foramen

Answer 5

Major palatine a, v, n

Question 6

Minor Palatine Foramen

Answer 6

Branches of major palatine artery

Question 7

Caudal Palatine Foramen

Answer 7

Major palatine a, v, n

Question 8

Sphenopalatine Foramen

Answer 8

Sphenopalatine a, v and Caudal nasal n

Question 9

Infraorbital Foramen

Answer 9

Infraorbital a, v, n

Question 10

Maxillary Foramen

Answer 10

Maxillary a, v, n

Question 11

Infraorbital Canal

Answer 11

Maxillary/Infraorbital a, v, n

Question 12

Optic Canal

Answer 12

Optic n and External Ophthalmic a, v

Question 13

Orbital Fissure

Answer 13

Oculomotor n (CN III)
Trochlear n (CN IV)
Ophthalmic n
Abducens n (CN VI)

Question 14

Rostral Alar Foramen

Answer 14

Maxillary a, v, n

Question 15

Caudal Alar Foramen

Answer 15

Maxillary a, v

Question 16

Alar Canal

Answer 16

Maxillary a, v and Maxillary n en route to rostral alar foramen

Question 17

Round Foramen

Answer 17

Maxillary n en route to alar canal

Question 18

Oval foramen

Answer 18

Mandibular n and Emissary vein from cranial cavity

Question 19

Musculotubal Canal

Answer 19

Auditory tube

Question 20

Foramen Lacerum

Answer 20

Loop of the internal carotid artery

Question 21

Stylomastoid Foramen

Answer 21

Facial nerve

Question 22

Tympanoccipital Fissure

Answer 22

Glossopharyngeal nerve, Vagus nerve, Spinal Acc. nerve and Sympathetic nerves and small veins

Question 23

Retroarticular Foramen

Answer 23

Temporomandibular articular vein

Question 24

Hypoglossal Canal

Answer 24

Hypoglossal nerve

Question 25

Foramen Magnum

Answer 25

Spinal Cord, Basilar artery, Venous plexus, Spinal part of Spinal Acc. nerve

Question 26

Round Foramen (Internally)

Answer 26

Maxillary nerve, and Emissary vein from the cavernous sinus

Question 27

Carotid Canal (Internally)

Answer 27

Internal carotid artery

Question 28

Internal Acoustic Meatus

Answer 28

Facial nerve and Vestibulocochlear nerve

Question 29

Jugular Foramen

Answer 29

Glossopharyngeal, Vagus, Spinal Acc. Nerve and Sigmoid sinus