Anat Lab 2

Front 1

• Nasion

Back 1

- junction between frontal and nasal bones

Front 2

• Orbital margin

Back 2

boundry between frontal, maxillary and zygomatic bones

Front 3

- Zygomatic process (links

Back 3

temporal bone to zygomatic bone)

Front 4

• Pterion

Back 4

(junction of frontal, parietal, temporal and sphenoid bone

Front 5

• Frontal suture

Back 5

ossification on frontal bone, obliterated in adult

Front 6

• Bregma

Back 6

point where coronal and sagittal sutures meet

Front 7

• Dura mater - outer layer (periosteal layer is on

Back 7

bone

Front 8

Dura matter meningeal layer is

Back 8

internal on arachnoid

Front 9

• Superior sagittal sinus - lateral expansions

Back 9

lateral venous lacunae

Front 10

• Superior sagittal sinus - Arachnoid granulations

Back 10

return CSF to venous system

Front 11

- Middle meningeal artery is subdural or epidural?

Back 11

epidural, runs through the foramen spinosum

Front 12

- If Middle Meningeal is damaged, it can cause a

Back 12

hematoma into the epidural space, crushes skull

Front 13

- Cristi Galli

Back 13

attachment point for cerebral falx - dural fold

Front 14

- Cribiform Plate

Back 14

Olfactory bulb rests here, transmits olfactory nerve to nasal cavity

Front 15

Anterior cranial fossa - Seperated from the middle cranial fossa by

Back 15

sphenoidal crest and sphenoidal limbus

Front 16

Anterior Cranial Fossa - made up by 3 bones

Back 16

ethmoid, sphenoid, and frontal (orbit) bones

Front 17

Middle Cranial Fossa

Back 17

Seperated from the posterior cranial fossa by the superior border of the petrous part of temporal bone and the dorsum sallae

Front 18

- Middle meningeal artery - creates an impression on the middle cranial fossa (its an epidural artery), the artery is a branch from the external carotid and passes into the skull via

Back 18

foramen spinosum

Front 19

Maxillary division of trigeminal nerve (V2) passes thru

Back 19

• Foramen rotundum

Front 20

Mandibular division of trigeminal nerve (V3) passes thru

Back 20

• Foramen ovale

Front 21

This is Where internal carotid exits the skull from the floor of the cranial cavity

Back 21

• Foramen Lacerum

Front 22

the internal carotid enters the skull in

Back 22

carotid canal

Front 23

pituitary gland is in this fossa

Back 23

• Hypophyseal fossa

Front 24

Emissary veins go thru

Back 24

Foramen Caecum

Front 25

Olfactory Nerve goes thru

Back 25

Olfactory Foramina in Cribiform plate

Front 26

Optic Nerve and Ophthalmic artery go thru

Back 26

Optic Canal

Front 27

Oculomotor goes thru

Back 27

Superior Orbital Fissure

Front 28

Trochlear Nerve goes thru

Back 28

Superior Orbital fissure

Front 29

Opthalmic Division V1 goes thru

Back 29

Superior Orbital Fissure

Front 30

Abducens goes thru

Back 30

Superior Orbital Fissure

Front 31

Opthalmic veins go thru

Back 31

Superior Orbital Fissure

Front 32

Maxillary Division V3 goes thru

Back 32

Foramen Rotundum

Front 33

Lesser Petrosal nerve goes thru

Back 33

Foramen Rotundum

Front 34

Middle Meningeal Artery goes thru

Back 34

Foramen Spinosum

Front 35

Greater petrosal goes thru

Back 35

Hiatus of greater petrosal

Front 36

Lesser petrosal nerve goes thru

Back 36

Hiatus of lesser petrosal

Front 37

Vertebral arteries go thru

Back 37

Foramen Magnum

Front 38

Spinal roots of the accesory nerve go thru

Back 38

Foramen Magnum

Front 39

Facial nerve goes thru

Back 39

Internal Acoustic Meeatus

Front 40

Vestibulocochlear goes thru

Back 40

Internal Acoustic Meeatus

Front 41

Labyrinthine A. goes thru

Back 41

Internal Acoustic Meeatus

Front 42

Glossopharyngeal goes thru

Back 42

Jugular Foramen

Front 43

Vagus thru

Back 43

Jugular Foramen

Front 44

Accesory thru

Back 44

Jugular Foramen

Front 45

Inferior petrosal sinus thru

Back 45

Jugular Foramen

Front 46

Sigmoid Sinus thru

Back 46

Jugular Foramen

Front 47

Hypoglossal N goes thru

Back 47

Hypoglossal canal