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Passageways - Skull

Passageways through the bones of the skull

TermDefinition
Carotid Canal Inferior surface of the temporal bone internal carotid artery, veins and nerves pass through
Foramen Lacerum Floor of cranial cavity between temporal and sphenoid bones branch of pharyngeal artery passes through (in life, opening is largely covered by fibrocartilage)
Foramen Magnum Base of skull in occipital bone Inferior part of brainstem connects to the spinal chord through this hole, as well as certain arteries
Foramen Ovale Floor of cranial cavity in sphenoid bone Mandibular division of trigeminal nerve and veins pass through
Foramen rotundum Floor of cranial cavity in sphenoid bone Maxillary division of trigeminal nerve passes through
Foramen spinosum Floor of cranial cavity in sphenoid bone Middle meningeal blood vessels and branch of mandibular nerve pass through
Greater Palatine Foramen Posterior portion of hard palate in palatine bone Palatine blood vessels and nerve pass through
Hypoglossal Canal Near margin of foramen magnum in occipital bone Hypoglossal nerve
Incisive foramen Incisive fossa in anterior portion of the hard palate Nasopalatine nerves, openings of vomeronasal organ pass through
Inferior orbital fissure Floor of the orbit Maxillary nerve and blood vessels pass through
Infraorbital foramen Below the orbit in maxillary bone Infraorbital blood vessels and nerves
Internal Acoustic Meatus Floor of cranial cavity in temporal bone Branches of facial and vestibulocochlear nerves and blood vessels
Jugular Foramen Base of skull between the temporal and occiptal bones Glossopharyngeal, vagus and accessory nerves and blood vessels pass through
Mandibular Foramen Inner surface of ramus of mandible Inferior alveolar blood vessels and nerves passing through
Mental foramen Near point of jaw in mandible Mental nerve and blood vessels
Optic canal Posterior portion of orbit in sphenoid bone Optic nerve and ophthalmic artery passing through
Stylomastoid Foramen Between styloid and mastoid processes Facial nerve and blood vessels passing through
Superior orbital fissure Lateral wall of orbit Oculomotor, trochlear and abducens nerves and ophthalmic division of trigeminal nerve
Supraorbital Foramen Upper margin or orbit in frontal bone Supraorbital blood vessels and nerves
Created by: 5229071
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