Cranial Structures and Foramina

Question 1

Anterior Cranial Fossa

Answer 1

1. Anterior Ethmoidal Canal 2. Posterior Ethmoidal Canal 3. Foramen Cecum 4. Cribriform Foramina or Perforations

Question 2

Anterior Ethmoidal Canal

Answer 2

Anterior Ethmoidal Nerve, Artery, and Vein

Question 3

Carotid Foramen

Answer 3

1. Internal Carotid Artery and Internal Carotid Plexus

Question 4

Condyloid Canal

Answer 4

Emissary Vein (from Veins of Suboccipital Triangle to Sigmoid Sinuses)

Question 5

Cribriform Foramina or Perforations

Answer 5

Olfactory Nerve Fibers

Question 6

Foramen Cecum

Answer 6

Emissary Vein (Veins of Frontal Sinus and Nose to Sup. Sagittal Sinus)

Question 7

Foramen Lacerum

Answer 7

Emissary Vein

Question 8

Foramen Magnum

Answer 8

1. Junction of Brain and Spinal Cord 2. Junction of Dura Mater and Spinal Cord 3. Vertebral Arteries (w/Sympathetic Plexus) 4. Verterbal Veins 5. Blood Vessels of Spinal Cord

Question 9

Foramen Ovale

Answer 9

1. V3: Mandibular Nerve 2. Accessory Meningeal Artery 3. Lesser Petrosal Nerve 4. Emissary Vein (from Cavernous Sinus to Pterygoid Plexus)

Question 10

Foramen Rotundum

Answer 10

1. V2: Maxillary Nerve 2. Artery to Foramen Rotundum

Question 11

Foramen Spinosum

Answer 11

1. Middle Meningeal Artery 2. Sympathetic Plexus 3. Recurrent Branch of V3 (Meningeal Branch)

Question 12

Foramen Vesalii

Answer 12

Emissary Vein (from Cavernous Sinus to Pterygoid Plexus)

Question 13

Greater Palatine Foramen (Canal)

Answer 13

Greater Palatine Nerve, Artery, and Vein

Question 14

Hiatus for Lesser Petrosal Nerve

Answer 14

Lesser Petrosal Nerve

Question 15

Hiatus of Facial Canal

Answer 15

Greater Petrosal Nerve

Question 16

Hypoglossal Canal

Answer 16

Hypoglossal Nerve

Question 17

Incisive Foramen

Answer 17

1. Greater Palatine Artery 2. Nasopalatine Nerve

Question 18

Inferior Orbital Fissure

Answer 18

1. Infraorbital Artery and Vein 2. Zygomatic Nerve 3. Orbital Branch of Pterygopalatine Nerves 4. Vein from orbit to Pterygoid Plexus

Question 19

Internal Auditory Meatus

Answer 19

1. CN 8: Vestibulocochlear 2. CN 7: Facial Nerve

Question 20

Internal Opening of Carotid Canal

Answer 20

1. Internal Carotid Artery and Internal Carotid Plexus 2. Emissary Vein (from Cavernous Sinus to Pharyngeal Vein)

Question 21

Jugular Foramen

Answer 21

1. Internal Jugular Vein 2. Inferior Petrosal Sinus 3. CN 9: Glossopharyngeal Nerve 4. CN 10: Vagus Nerve 5. CN 11: Spinal Accessory Nerve

Question 22

Lesser Palatine Foramen

Answer 22

1. Lesser Palatine Nerve, Artery, and Vein 2. Middle Palatine Nerve, Artery, and Vein

Question 23

Mandibular Foramen

Answer 23

Inferior Alveolar Nerve, Artery, and Vein

Question 24

Mastoid Foramen

Answer 24

Mastoid Emissary Vein (from Occipital Veins of Posterior Auricular Vein to Sigmoid Sinuses)

Question 25

Middle Cranial Fossa

Answer 25

1. Superior Orbital Fissure 2. Foramen Rotundum 3. Foramen Ovale 4. Foramen Spinosum 5. Hiatus of Facial Canal 6. Hiatus for Lesser Petrosal Nerve 7. Internal Opening of Carotid Canal 8. Foramen Vesalii 9. Optic Foramen

Question 26

Optic Foramen

Answer 26

1. CN 2: Optic Nerve 2. Ophthalmic Artery (w/Sympathetic Fibers of Internal Carotid Plexus)

Question 27

Parietal Foramen

Answer 27

Parietal Emissary Vein (from Occipital Vein to Superior Sagittal Sinus)

Question 28

Petrosquamous Fissure

Answer 28

Location only

Question 29

Petrotympanic Fissure

Answer 29

1. Chorda Tympani 2. Anterior Tympanic Artery 3. Medial Retrodiscal Ligament/Anterior Malleolar Ligament

Question 30

Pharyngeal Canal

Answer 30

1. Pharyngeal Artery and Vein 2. Pharyngeal Branch of Pterygopalatine Nerve

Question 31

Posterior Cranial Fossa

Answer 31

1. Foramen Magnum 2. Jugular Foramen 3. Hypoglossal Canal 4. Condyloid Canal 5. Internal Auditory Meatus 6. Mastoid Foramen

Question 32

Posterior Ethmoidal Canal

Answer 32

Posterior Ethmoidal Nerve, Artery, and Vein

Question 33

Posterior Superior Alveolar Foramen

Answer 33

Posterior Superior Alveolar Nerve, Artery, and Vein

Question 34

Pterygopalatine Canal

Answer 34

1. Descending Palatine Artery and Vein 2. Greater and Lesser Palatine Nerves

Question 35

Pterygopalatine/Pterygomaxillary Fissure

Answer 35

1. Maxillary Artery 2. Pterygoid Plexus to Maxillary Vein

Question 36

Squamotympanic Fissure

Answer 36

Location only

Question 37

Stylomastoid Foramen

Answer 37

CN 7: Facial Nerve

Question 38

Superior Orbital Fissure

Answer 38

1. CN 3: Oculomotor Nerve 2. CN 4: Trochlear Nerve 3. V1: Ophthalmic Nerve 4. CN 6: Abducens Nerve 5. Nasociliary Nerve 6. Lacrimal Nerve 7. Meningeal Branch of Lacrimal Artery 8. Branch of Middle Meningeal Artery to Orbit 9. Sympathetic Fibers

Question 39

Supraorbital Foramen

Answer 39

Supraorbital Nerve, Artery, and Vein

Question 40

Tympanic Canaliculus

Answer 40

Tympanic Branch of CN IX: Glossopharyngeal Nerve

Question 41

Zygomaticofacial Foramen

Answer 41

Zygomaticofacial Nerve

Question 42

Zygomaticotemporal Foramen

Answer 42

Zygomaticotemporal Nerve