Anatomy Col3 24 Fossas+Orbit + External Eye

Front 1

orbital margins:

Back 1

supraorbital margin and infraorbital margin

Front 2

medial walls of orbit:

Back 2

the maxilla, lacrimal, ethmoid, and sphenoid bones

Front 3

Lateral wall of orbit:

Back 3

Zygomatic and greater wing of sphenoid

Front 4

Inferior wall of orbit:

Back 4

Zygomatic. maxilla, palatine bones

Front 5

Superior wall of orbit:

Back 5

Frontal and sphenoid (lesser wing)

Front 6

Foramens – fissures – canals of the orbit:

Back 6

superior orbital fissure,
inferior orbital fissure,optic canal,
infraorbital foramen,
supraorbital foramen,
nasolacrimal canal,
anterior and posterior ethmoidal foramen

Front 7

superior orbital fissure contains:

Back 7

Oculomotor(CN 3),
Trochlear (CN 4),
Ophtalmic nerve(CN V1),
Abducent nerve (CN 6),
superior ophthalmic vein

Front 8

inferior orbital fissure contains:

Back 8

Zygomatic nerve(CN V2)
,Inferior ophthalmic vein,
infraobrbital artery and vein and nerve (CN V2)

Front 9

optic canal contains:

Back 9

Optic n(CN 2) and
Ophtalmic artery

Front 10

infraorbital foramen contains:

Back 10

Infraorbital artery vein and nerve (CN V2)

Front 11

supraorbital foramen contains:

Back 11

Supraorbital artery and nerve

Front 12

nasolacrimal canal contains:

Back 12

Nasolacrimal duct

Front 13

anterior ethmoidal foramen contains:

Back 13

Anterior ethmoidal artery vein and nerve

Front 14

posterior ethmoidal foramen contains:

Back 14

Posterior ethamoidal artery,vein and nerve

Front 15

Otic Ganglion Lies in:

Back 15

the infratemporal fossa, just below the foramen ovale between the mandibular nerve and the tensor veli palatini.

Front 16

Otic ganglion gets what kind of fibers from which nerv?

Back 16

Presynaptic parasympathetic fibers, derived mainly from the glossopharyngeal nerve (CN IX) synapse in the otic ganglion

Front 17

Otic ganglion “sends out” what knd of fibers + to where:

Back 17

Postsynaptic parasympathetic fibers, which are secretory to the parotid gland, pass from the ganglion to this gland through the auriculotemporal nerve.

Front 18

CN V3 leaves middle cranial fossa through:

Back 18

Foramen ovale

Front 19

After foramen ovale – CN V3 enters:

Back 19

infratemporal fossa -> external aspects of skull

Front 20

muscles of mastication are mostly innervated by:

Back 20

mandibular nerve

Front 21

Anterior trunk of mandibular nerve contains mostly which kind of nerves + except:

Back 21

Motor nerves, except Buccal nerve

Front 22

Posterior trunk of mandibular nerve contains mostly which kind of nerves + except:

Back 22

Sensory nerves – except: Mylohyoid nerve (mylohyoid muscle and the anterior belly of the digastric muscle.)

Front 23

Temporal fossa communications:

Back 23

infratemporal fossa via gap deep to zygomatic arch

Front 24

how does the infratemporal fossa communicate with the pterygopalatine fossa

Back 24

through the pterygomaxillary fissure

Front 25

Pterygopalatine fossa communicates Laterally with + through what:

Back 25

the infratemporal fossa through the pterygomaxillary fissure.

Front 26

Pterygopalatine fossa communicates Medially with + through what:

Back 26

the nasal cavity through the sphenopalatine foramen.

Front 27

Pterygopalatine fossa communicates Anterosuperiorly with + through what:

Back 27

the orbit through the inferior orbital fissure.

Front 28

Pterygopalatine fossa communicates Posterosuperiorly with + through what:

Back 28

the middle cranial fossa through the foramen rotundum and pterygoid canal.

Front 29

Temporal fossa Content:

Back 29

temporalis m. deep temporal nn. deep temporal vessels

Front 30

The floor of the temporal fossa is formed by parts of the four bones:

Back 30

frontal, parietal, temporal, and greater wing of the sphenoid

Front 31

roof of the temporal fossa:

Back 31

temporalis fascia

Front 32

Retromandibular fossa location:

Back 32

anterior: ramus of mandible
posterior: External acoustic meatus and mastoid process

Front 33

Retromandibular fossa content:

Back 33

parotid gland -> these go inside (lateral to medial):,
facial n. (CN VII) retromandibular v. external carotid a.

Front 34

Infratemporal fossa Content:

Back 34

-Inferior part of the temporalis muscle.
-Lateral and medial pterygoid muscles.
-Maxillary artery.
-Pterygoid venous plexus.
-Mandibular, inferior alveolar, lingual, buccal, and chorda tympani nerves
-otic ganglion.

Front 35

Pterygopalatine fossa content:

Back 35

maxillary a.
maxillary n.
pterygopalatine ganglion

Front 36

Fissue between Pterygopalatine fossa and infratemporal fossa:

Back 36

pterygomaxillary fissure

Front 37

Infratemporal fossa border Anteriorly:

Back 37

posterior aspect of the maxilla.

Front 38

Infratemporal fossa border Posteriorly:

Back 38

tympanic plate and the mastoid and styloid processes of the temporal bone.

Front 39

Infratemporal fossa border Laterally:

Back 39

ramus of the mandible.

Front 40

Infratemporal fossa border Superiorly:

Back 40

inferior surface of the greater wing of the sphenoid bone.

Front 41

Infratemporal fossa border Inferiorly:

Back 41

where the medial pterygoid muscle attaches to the mandible near its angle

Front 42

Pterygopalatine fossa border Anterior:

Back 42

,Maxillary tuberosity

Front 43

Pterygopalatine fossa border Posterior:

Back 43

Pterygoid process

Front 44

Pterygopalatine fossa border Medial:

Back 44

Perpendicular plate of palatine bone

Front 45

Pterygopalatine fossa border Lateral:

Back 45

Opening to infratemporal fossa via pterygomaxillary fissure

Front 46

Pterygopalatine fossa border Superior:

Back 46

Greater wing of sphenoid bond, junction with inferior orbital fissure

Front 47

Pterygopalatine fossa border Inferior:

Back 47

Opens into retropharyngeal space

Front 48

Temporal fossa border Anteriorly:

Back 48

zygomatic process of the frontal bone and the frontal process of the zygomatic bone.

Front 49

Temporal fossa border Posteriorly and superiorly:

Back 49

the superior and inferior temporal lines.

Front 50

Temporal fossa border Laterally:

Back 50

the zygomatic arch.

Front 51

Temporal fossa border Inferiorly:

Back 51

the infratemporal crest

Front 52

Infratemporal fossa border Medially

Back 52

lateral pterygoid plate

Front 53

Terminal branches of external carotid a

Back 53

Maxillary a
Superficial temporal a.

Front 54

Parts of Maxillary a

Back 54

mandibular, ptergoid, pterygopalentine part

Front 55

Layers between skin and bone:

Back 55

Skin
CT
epicranial aponeurosis
(= skalp)
Loose connective tissue
Periosteum

Front 56

Eye has how many mucles

Back 56

Four recti muscles
superior, lateral, medial, inferior

Two oblique muscles
superior, inferior

Front 57

The Extra-ocular muscles attaches where

Back 57

Common tendinous ring

Front 58

inferior oblique movment:

Back 58

Lateral and superior movments

Front 59

superior oblique movment:

Back 59

Lateral and inferior movments

Front 60

Superior rectus muscle

Back 60

Superior and medial movment

Front 61

Inferior rectus muscle

Back 61

Inferior and medial movment

Front 62

Medial rectus muscle

Back 62

Medial movment

Front 63

Lateral rectus muscle

Back 63

Lateral movment

Front 64

Innervation of Extraocularmotor Muscles:

Back 64

LR6 SO4 3
LR6--Lateral rectus-->CN VI abductens

SO4--Superior Oblique--> CN IV Trochlear

3--The remaining 4 eyeball movers = III Oculomotor

Front 65

Eyelid consits of (5)

Back 65

skin
-loose connective tissue
-orbicularis oculi muscle
-tarsal plate and tarsal glands
-palpebral conjunctiva

Front 66

List the Accessory visual structures

Back 66

Extra-ocular muscles
Eyebrow and eyelid
Conjunctiva
Lacrimal apparatus

Front 67

Name the brach of the internal carotid artery that supply the eye

Back 67

Ophthalmic artery -entering via optic canal

Front 68

Ophthalmic artery branches: (5)

Back 68

-to retina (central artery of retina)
-to remaining coats of the eyeball (ciliary arteries)
-to lacrimal gland (lacrimal a.)
-to extraocular muscles
-to nasal cavity and paranasal sinuses (ethmoidal aa.)

Front 69

Arteries as they come off the external carotid:

Back 69

Some anatomists like flirting, others prefer S&M
Superior thyroid,
Ascending pharyngeal,
Lingual,
Facial,
Occipital,
Post Auricular,
Superficial temporal,
Maxillary

Front 70

Which mucle is above Superior rectus m?

Back 70

Levator palpebrae superioris m.

Front 71

Nasolacrimal Canal Is formed by:

Back 71

the maxilla, lacrimal bone, and inferior nasal concha.

Front 72

Nasolacrimal Canal Transmits what + to where?:

Back 72

the nasolacrimal duct from the lacrimal sac to the inferior nasal meatus

Front 73

Frontal foramen or notch contains:

Back 73

supratrochlear vessels and nerve

Front 74

Frontal foramen or notch location:

Back 74

occasional small opening in the supraorbital margin of the frontal bone medial to the supraorbital foramen.

Front 75

zygomaticoorbital foramen location + content:

Back 75

orbital surface of the zygomatic bone,
transmitting the zygomaticofacial and zygomaticotemporal nerves.

Front 76

Name the two foramen that opens on the exterior surface of the zygomatic bone: .

Back 76

Zygomaticofacial foramen
Zygomaticotemporal foramen

Front 77

Name of the parts of bone that make up the orbit:

Back 77

Orbital surface of ex. Maxillary bone

Front 78

Infratemporal fossa communicates with:

Back 78

-Superolaterally : Temporal fossa via gap bounded by zygomatic arch

-Anteriorly -: Orbit via inferior orbital fissure

-Medially : pterygopalatine fossa via pterygomaxillary fissure

Superiorly: Middle cranial fossa via foramen ovale and foramen spinosum

-Posterior:
parapharyngeal space and Retromandibular fossa

Front 79

Opitcal canal is between which areas?

Back 79

middle cranial fossa

Front 80

superior orbital foramen is between which areas?

Back 80

Orbit - - middle cranial fossa

Front 81

inferior orbital foramen is between which areas?

Back 81

Infratemporal fossa(Lateral) and pterygopalatine fossa (medial)

Front 82

Supra orbital foramen is in which bones:

Back 82

Greater and lesser wing and body of sphenoid

Front 83

Superior Oblique (SO) origin:

Back 83

Body of sphenoid bone

Front 84

Inferior Oblique (IO) origin:

Back 84

Anterior part of floor of orbit

Front 85

Superior Oblique (SO) movments:

Back 85

Abducts,depresses, and rotates eyeball medially (intorsion)

Front 86

Inferior Oblique (IO) movments:

Back 86

Abducts,elevates, and rotates eyeball laterally (extorsion)

Front 87

Levator Palpebrae superioris movments:

Back 87

Elevates Superior eyelid

Front 88

Superior rectus (SR) movments:

Back 88

Elevates,adducts, and rotates eyeball medially (intorsion)

Front 89

Inferior rectus (IR) movments:

Back 89

Depresses,adducts, and rotates eyeball laterally (extorsion)

Front 90

Ophthalmic nerve V1 passas on the lateral wall of:,

Back 90

cavernous sinus

Front 91

Ophthalmic nerve V1 enters orbit via:,

Back 91

superior orbital fissure

Front 92

Ophthalmic nerve V1 branches in the orbit (Medial -> lat):,

Back 92

Nasociliary, frontal n and lacrimal n.

Front 93

Ciliary ganglion is medial to:,

Back 93

lateral recuts muscle

Front 94

Cilary ganglion roots:,

Back 94

Sensory: Nasocilary n(V1),
parasympathetic from CN 3 (oculomotor) and
sympathetic that constitue post ganglionic fibers from cavernous plexues

Front 95

Name nerves from Cilary ganglion + type of fibers + innervates:,

Back 95

Short ciliary – sens, para/sympathetic
-> ciliary m, sphincter pupillae, and dilator pupillae m

Front 96

Which is the only chrainal nerve to arise form the dorsal aspetct of the brainstem:,

Back 96

trochlear nerve from cn 6

Front 97

Trochlear nerve innervates:,

Back 97

superior oblique muscle

Front 98

Which nerve is inferior and lateral to internal carotid artery within the cavernous sinus:,

Back 98

abducens nerve, cn 6

Front 99

Convergent strabismus can be due to:,

Back 99

Injury to abducens nerve -> paralysis of the lateral rectus muscle

Front 100

Leveator palpebrae is innervated by:,

Back 100

Superior brach of oculomtor nerve 3

Front 101

Rectus superior muscle is innervated by:,

Back 101

Superior brach of oculomtor nerve 3

Front 102

inferior brach of oculomtor nerve 3 innervates:,

Back 102

Medial recuts,
inferior rectus
and inferior oblique and parasympathetic root to ciliary ganglion

Front 103

Parapharyngeal space is

Back 103

potential spac