Term
| Describe the infra temporal fossa (2) |
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Definition
-Between posterior ramus of mandible and posterior to maxilla (pterygoid process)
-Mandibular nerve |
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Term
| Describe the pterygopalatine fossa (3) |
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Definition
-Posterior to upper jaw
-Communicate with cranial cavity, infra temporal fossa, orbit, nasal cavity, and oral cavity
-Maxillary nerve |
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Term
| What cavity does the pterygopalatine fossa NOT communicate with? |
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Definition
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Term
| What nerves run off from the trigeminal nerve ? |
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Definition
| Mandibular (CN V3) (from the infra temporal fossa) and maxillary (CN V2) (from the pyterygopalatine fossa) nerves |
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Term
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Definition
-begins above hard palate
-Contains external nose and nasal cavities |
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Term
| What does the nasal septum do? |
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Definition
| It divides the nose chamber into two cavities- each contains a roof, floor, medial and lateral wall |
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Term
| ROOF of the NASAL cavity and FLOOR of the ANTERIOR CRANIAL fossa |
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Definition
| Cribriform plate of ethmoid bone |
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Term
| What will a fracture of the cribriform plate of the ethmoid bone result in? |
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Definition
| CSF rhinorrhea and meningitis |
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Term
| FLOOR of the nasal cavity |
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Definition
| Hard palate made by palatine processes of maxillae and horizontal plates of palatine bones |
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Term
| MEDIAL wall of nasal cavity (3) |
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Definition
Nasal septum made by 3 things. Think of it as like a triangle:
1) posterior superiorly by perpendicular plate of ethmoid bone
2) posterior inferiorly by vomer
3) anteriorly by septal cartilage |
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Term
| LATERAL wall of nasal cavity |
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Definition
1) superior, middle, and inferior conchae
2) meatus inferior to each conchae; therefore, there are also superior, middle, and inferior meatuses |
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Term
| Describe the middle meatus (page 582) (2) |
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Definition
| -Semilunar hiatus that hits a rounded elevation called the ethmoidal bulla |
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Term
| What sinuses drain into the semilunar hiatus? |
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Definition
1) Frontal sinus
2) Maxillary sinus
3) ANTERIOR ethmoidal sinus |
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Term
| Osmium of maxillary sinus |
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Definition
| Since it's located above the sinus, when maxillary sinusitis develops, the sinus is unable to drain; therefore, an artificial osmium may be creased in the INFERIOR MEATUS to allow better drainage. |
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Term
| Where does the nasolacrimal duct drain into? |
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Definition
| excess lacrimal fluids drain into the inferior meatus |
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Term
| Nerve supply of the nasal cavity (3) |
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Definition
1) Anterior ethmoidal (V1) from trigeminal nerve
2) Maxillary nerve (V2) from trigeminal nerve
3) Superior concha region by olfactory nerves |
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Term
| Blood supply of the nasal cavity (3) page 584 |
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Definition
1) Anterior and posterior ethmoidal arteries that come from the ophthalmic artery
2) Sphenopalatine and greater palatine arteries that come off the maxillary artery that comes off the external carotid artery
3) Facial artery |
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Term
|
Definition
-Arterial anastomosis of the anterior/posterior branches
-Common for epistaxis |
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Term
|
Definition
4 sided pyramid with:
-Posterior apex/anterior base
-Medial/lateral walls
-superior/inferior walls |
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Term
|
Definition
Orbital surface of frontal bone
Lesser wing of sphenoid bone
Frontal lobe of brain in anterior cranial fossa |
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Term
| Anterolateral wall of orbit |
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Definition
| Lacrimal fossa for orbital lacrimal gland |
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Term
| Medial wall of orbit MELS |
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Definition
| Maxilla, lacrimal, ethmoid sphenoid bones - related to ethmoidal sinuses, sphenoidal sinuses, and nasal cavity |
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Term
| Lateral wall of orbit OPPOSITE to superior wall |
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Definition
Zygomatic bone anteriorly
Greater wing of sphenoid bone posteriorly |
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Term
| Inferior wall of orbit (floor)/(roof) of maxillary sinus |
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Definition
| Orbital surface of maxilla+ small contributions from zygomatic and palatine bones |
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Term
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Definition
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Term
| 4 sides of the optic foramen |
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Definition
superiorly: frontal bone
Medially- frontal processes of maxilla
inferiorly- zygomatic process of maxilla and zygomatic bone
laterally- zygomatic bone, frontal processes of zygomatic bone, zygomatic presses of frontal bone |
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Term
| Levator palpabele superioris |
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Definition
Origin: lesser sing of sphenoid bone (roof or orbit). superior and anterior optic canal
Insertion: superior tarsus and skin of upper eyelid
CN III
Elevates superior eyelid |
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Term
|
Definition
O: body of sphenoid
I: sclera (passes through trochlea and deep to SR)
CN IV
Abducts, depresses and medially rotates eyeball |
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Term
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Definition
| Depression and medial rotation of the eyeball |
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Term
|
Definition
O: Anterior part of floor of orbit
I: sclera deep to lateral rectus
CN IV
Abducts, elevates, and lateral rotates eyeball |
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Term
|
Definition
| Elevation and lateral rotation of the eyeball |
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Term
|
Definition
O: common tendinous ring
I: sclera just posterior to corneoscleral junction
LR- Abduent nerve CN VI
SR, MR, IR: Oculomotor CN III
Actions: SR- intorsion, IR- extorsion, LR- abducts, MR- Adducts |
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Term
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Definition
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
|
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Term
|
Definition
| Medulla, meninges, vertebral arteries, CN XI |
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Term
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Definition
| CN 9, 10, 11, internal jugular vein, sigmoid sinus |
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Term
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Definition
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Term
| Which nerve does not originate from the brain? |
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Definition
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Term
|
Definition
Skin
Connective tissue
Aponeurosis
Loose connective tissue
Pericranium |
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Term
|
Definition
Occipital, posterior auricular, and superficial temporal arteries from ECA
Supratrochlear and supraorbital arteries from ICA. |
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Term
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Definition
Anterior to auricles- Tigeminal nerve
Posterior to auricles- Spinal cutaneous enrve C2 & C3
MOTOR- Facial nerve |
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Term
| Structures passing through the cavernous sinus are: |
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Definition
Internal carotid artery
Abducent nerve |
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Term
| Structures in the lateral wall of each cavernous sinus are (superior to inferior): |
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Definition
Oculomotor nerve
Trochlear nerve
Ophthalmic nerve V1
Maxillary nerve V2 |
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Term
| Innervation of the durameter? |
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Definition
CN V
Pain=Headache
Sensory- Vagus, hypoglossal, and superior 3 cervical nerves |
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Term
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Definition
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Term
| What is formed in the choroid plexuses and where does it go? |
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Definition
| CSF- Cerebrospinal fluid and it enters subarachnoid space |
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