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
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Definition
-Arterial anastomosis of the anterior/posterior branches -Common for epistaxis |
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Term
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Definition
4 sided pyramid with: -Posterior apex/anterior base -Medial/lateral walls -superior/inferior walls |
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Term
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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
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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
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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
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Definition
Elevation and lateral rotation of the eyeball |
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Term
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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
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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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
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Definition
Skin Connective tissue Aponeurosis Loose connective tissue Pericranium |
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Term
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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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