THE SKULL 2202021 SCNM ANAT 604 Skull 1

TEMPORAL • FORAMINA – CAROTID CANAL – INTERNAL AUDITORY MEATUS (NOT SHOWN) – EXTERNAL

SPHENOID FORAMINA • • • OPTIC CANAL SUP. ORBITAL FISSURE F. ROTUNDUM F. OVALE

MAXILLA (Cont. ) • PALATINE PROCESS • INCISIVE CANAL • GR. PALATINE FORAMEN •

Optic Canal Sphenoid: OPTIC NERVE – CN II OPTHALMIC ARTERY – retina. (via internal

SUPERIOR ORBITAL FISSURE (orbit) SUPERIOR ORBITAL FISSURE – through sphenoid transmits CN III, IV,

INFERIOR ORBITAL FISSURE (orbit) • ZYGOMATICOTEMPORAL NERVE (BRANCH OF V 2)(sensory) • ZYTOMATICOFACIAL NERVE

Supra & Infraorbital Foramen • SUPRAORBITAL GROOVE/FORAMEN • SUPRAORBITAL NERVE (BRANCH OF V 1)

ORBIT FORAMINA ANT. ETHMOIDAL FORAMEN ZYGOMATICOORBITAL F. INFRAORBITAL GROOVE/CANAL SUPERIOR ORBITAL FISSURE ZYGOMATICOFACIAL F.

CRANIAL FOSSAE 2/20/2021 SCNM, ANAT 604, Skull 12

ANTERIOR CRANIAL FOSSA • BONES – FRONTAL -90% – SPHENOID – ETHMOID • HOUSES

MIDDLE CRANIAL FOSSA • BONES – SPHENOID – TEMPORAL – PARIETAL • HOUSES –

POSTERIOR CRANIAL FOSSA • BONES – – TEMPORAL SPHENOID OCCIPITAL PARIETAL • HOUSES –

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THE SKULL 2/20/2021 SCNM, ANAT 604, Skull 1

TEMPORAL • FORAMINA – CAROTID CANAL – INTERNAL AUDITORY MEATUS (NOT SHOWN) – EXTERNAL AUDITORY MEATUS (NOT SHOWN) – STYLOMASTOID FORAMEN 2/20/2021 SCNM, ANAT 604, Skull 2

TEMPORAL • INTERNAL AUDITORY MEATUS

SPHENOID FORAMINA • • • OPTIC CANAL SUP. ORBITAL FISSURE F. ROTUNDUM F. OVALE F. SPINOSUM F. LACERUM (CAROTID CANAL OPENS JUST SUPERIOR TO FORAMEN LACERUM) 2/20/2021 SCNM, ANAT 604, Skull 4

MAXILLA (Cont. ) • PALATINE PROCESS • INCISIVE CANAL • GR. PALATINE FORAMEN • Lesser palatine foramen 2/20/2021 SCNM, ANAT 604, Skull 5

Optic Canal Sphenoid: OPTIC NERVE – CN II OPTHALMIC ARTERY – retina. (via internal carotid) 2/20/2021 SCNM, ANAT 604, Skull 6

SUPERIOR ORBITAL FISSURE (orbit) SUPERIOR ORBITAL FISSURE – through sphenoid transmits CN III, IV, V 1, VI. • OCULOMOTOR NERVE (III) – motor to eyes ms except (LR, SO) • TROCHLEAR NERVE (IV) – superior oblique. • OPTHALMIC DIVISION OF TRIGEMINAL (V 1) • ABDUCENS NERVE (VI) – lateral rectus. 2/20/2021 SCNM, ANAT 604, Skull 7

INFERIOR ORBITAL FISSURE (orbit) • ZYGOMATICOTEMPORAL NERVE (BRANCH OF V 2)(sensory) • ZYTOMATICOFACIAL NERVE (BRANCH OF V 2)(sensory) • INFRAORBITAL NERVE (BRANCH OF V 2) (sensory) • INFRAORBITAL ARTERY & VEIN 2/20/2021 SCNM, ANAT 604, Skull 8

Supra & Infraorbital Foramen • SUPRAORBITAL GROOVE/FORAMEN • SUPRAORBITAL NERVE (BRANCH OF V 1) • SUPRAORBITAL ARTERY • INFRAORBITAL FORAMEN - INFRAORBITAL NERVE (BRANCH OF V 2) 2/20/2021 SCNM, ANAT 604, Skull 9

TRIGEMINAL DERMATOMES

ORBIT FORAMINA ANT. ETHMOIDAL FORAMEN ZYGOMATICOORBITAL F. INFRAORBITAL GROOVE/CANAL SUPERIOR ORBITAL FISSURE ZYGOMATICOFACIAL F. POST. ETHMOIDAL FORAMEN ZYGOMATICOTEMPORAL F. 2/20/2021 NASOLACRIMAL CANAL OPTIC CANAL INFERIOR ORBITAL FISSURE SUPRAORBITAL GROOVE/FORAMEN SCNM, ANAT 604, Skull INFRAORBITAL FORAMEN 11

CRANIAL FOSSAE 2/20/2021 SCNM, ANAT 604, Skull 12

ANTERIOR CRANIAL FOSSA • BONES – FRONTAL -90% – SPHENOID – ETHMOID • HOUSES – FRONTAL LOBES OF BRAIN 2/20/2021 SCNM, ANAT 604, Skull 13

MIDDLE CRANIAL FOSSA • BONES – SPHENOID – TEMPORAL – PARIETAL • HOUSES – TEMPORAL LOBES – DIENCEPHALON 2/20/2021 SCNM, ANAT 604, Skull 14

POSTERIOR CRANIAL FOSSA • BONES – – TEMPORAL SPHENOID OCCIPITAL PARIETAL • HOUSES – – MIDBRAIN CEREBELLUM PONS MEDULLA 2/20/2021 SCNM, ANAT 604, Skull 15