Flashcards of Head and Neck Anatomy (Unit 2)

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Medial wall of Nasal Cavity is Contributed by?
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Nasal septum

Which type of epithelium is present in Schneiderian membrane?
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Pseudo-Stratified Columnar Epithelium

Ethmoid sinuses drain at which area?
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Middle Meatus

Anterior Ethmoid sinuses drain at which area?
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Hiatus Semilunaris

What are the contents of Infratemporal Fossa?
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Temporalis and Pterygoid Muscles, Maxillary Artery (and branches, eg, Middle meningeal) Pterygoid Plexus of Veins, Mandibular nerve (V3), Chorda tympani (VII) Otic ganglion (IX)

Zygomatic Arch is formed by?
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Temporal Process of Zygomatic bone and Zygomatic Process of Temporal bone

The Middle Meatus contains openings of which Sinuses?
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Frontal sinus, Anterior and Middle Ethmoidal Sinuses, and Maxillary Sinuses

What are the Contents of Pterygopalatine Fossa?
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Pterygopalatine (3rd) part of Maxillary Artery and its Branches, Maxillary Nerve (V2), Nerve of Pterygoid canal, Pterygopalatine ganglion and branches

Posterior Ethmoid sinuses drain at which area?
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Superior Meatus

Which Bone is Largest and strongest bone of the face?
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Mandible

The maxillary sinus is lined by which membrane?
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Schneiderian Membrane

Middle Ethmoid sinuses drain at which area?
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Ethmoidal bullae

The ophthalmic artery enters the orbit through which Canal?
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Optic canal

The ophthalmic artery is the branch of which Artery?
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Internal Carotid Artery

Sphenoid sinuses drain at which area?
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Sphenoethmoidal Recess of Nasal Cavity

Maxilla consists of How many Processes?
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Four processes: Zygomatic, Frontal, Alveolar, and Palatine

Frontal sinuses drain at which area?
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Middle Meatus: Hiatus Semilunaris (below Middle Concha)

Roof of Nasal Cavity is Contributed by?
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Cribriform Plate of Ethmoid, Anterior body of Sphenoid, Nasal Spine of Frontal Bone, Nasal bones, Lateral Nasal Cartilages

Nasolacrimal apparatus drains at which area?
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Inferior Meatus (below Inferior Concha)

KIESSELBACH’S PLEXUS is made up of how many Arteries?
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Five arteries: ■ Sphenopalatine artery (from maxillary artery) ■ Greater palatine artery (from maxillary artery) ■ Superior labial artery (from facial artery) ■ Anterior ethmoid artery (from opthalmic artery) ■ Lateral nasal branches from facial artery

Maxillary sinuses drain at which area?
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Middle Meatus: Ostium (below Middle Concha) (within Hiatus Semilunaris)

The orbit comprises of how many Bones?
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Seven bones (■ Frontal ■ Maxilla ■ Zygoma ■ Ethmoid ■ Sphenoid ■ Lacrimal ■ Palatine)

The zygomatic bone is also referred to as?
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The Malar bone or Cheekbone

Lateral wall of Nasal Cavity is Contributed by?
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Nasal, Ethmoid, Sphenoid, Maxilla, Palatine, and Inferior Conchal Bones

The Nasal Septum comprises how many Bones?
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Five bones and one Cartilage: ■ Vertical plate of ethmoid ■ Vomer ■ Nasal crest of maxilla and palatine bones ■ Nasal crest of sphenoid bones ■ Septal cartilage

Most cases of Epistaxis arises from which area?
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KIESSELBACH’S PLEXUS

The Ophthalmic Artery supplies which Structures?
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It is the major blood supply to the Orbit and Eye

Sensory innervation to Nasal Cavity is provided by?
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Branches of Maxillary Nerves: ■ Nasopalatine ■ Infraorbital ■ Greater palatine. Some Sensory Branches are from V1 (Ophthalmic Division). ■ Anterior Ethmoidal Nerve

External Nose is Contributed by?
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Two Nasal Bones and Nasal Cartilages

Which type of Cartilage is present in the External Nose?
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Hyaline Cartilage

Floor of Nasal Cavity is Contributed by?
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Hard Palate (maxilla and palatine bones)

A surgical approach to pituitary gland is via?
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Sphenoid Sinus

How many Foramina are present in the Greater Wing of Sphenoid?
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Three (Rotundum, Ovale and Spinosum)

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