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Anatomy CAM304 > Deeper Head and Neck > Flashcards

Deeper Head and Neck Flashcards

1
Q

Temporal fossa

A

Above zygomatic arch
Temporalis m and fascia
CNV3 and maxillary a
Pterion common site of epidural haematoma

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2
Q

Infratemporal fossa

A

Below zygomatic arch

Deep to ramus of mandible

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3
Q

Infratemporal fossa mm

A

Pterygoids

Mm attached to styloid process partially in fossa

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4
Q

Infratemporal fossa floor

A

Superior pharyngeal constrictor

LVP and TVP

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5
Q

Mandibular division course and branches

A 
Exits skull via foramen ovale
Branches to mm of mastication
Buccal n
Auriculotemporal n
Lingual n
Inferior alveolar n (and its mental branch)
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6
Q

Maxillary a from and supplies

A

Terminal branch of external carotid a

Infratemporal fossa, dura and skull, mm of mastication, maxilla, mandible, teeth, nasal cavity, palate

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7
Q

Middle meningeal branch of maxillary a

A

Enters skull via foramen spinosum

Anterior branch deep to pterion

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8
Q

Pterygoid plexus

A

Drains area supplied by maxillary a

Forms maxillary vv

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9
Q

Pterygopalatine fossa location

A

Deep in infratemporal fossa
Between maxilla and sphenoid (lateral plate of pterygoid process)
Many foramina within
Superficial entrance is superior part of pterygomaxillary fissure
Palatine bone deep in fossa

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10
Q

Pterygopalatine fossa structures

A

Maxillary a enters via pterygomaxillary fissure

Cn V2 enters via foramen rotundum and distribute through various foramina

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11
Q

Pterygopalatine ganglion

A

Preganglionic axons from superior salivatory/lacrimal nucleus via CN VII
Postganglionic axons to nasal cavity, palate and lacrimal gland via CNV2 branches

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12
Q

Submandibular gland
Location
Relations
Duct

A

Wraps around posterior edge mylohyoid
Facial a and v
Duct open at sublingual papilla
Duct close to lingual n

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13
Q

Sublingual gland
Location
Ducts
Relations

A

Superior to mylohyoid
Ducts open at sublingual folds
Submandibular duct
Branches of lingual a, v, n

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14
Q

Parotid gland
Location
Relations
Duct

A

Superficial and posterior to massester and ramus of mandible
CN VII, aurciulotemporal n (CN V3), external carotid, maxillary and superficial temporal a and v, retromandibular v
Duct superficial to masseter, pierces buccinator, opens in vestibule of mouth opposite 2nd upper molar

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15
Q

PS innervation submandibular sublingual glands

A

Superior salivatory nucleus (caudal pons)
CN VII (chorda tympani, joins lingual n CN V3 in infratemporal fossa)
Submandibular ganglion
Lingual n or separately to glands

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16
Q

PS innervation parotid glands

A 
Inferior salivary nucleus (medulla)
CN IX
Otic ganglion (in infratemporal fossa)
Auriculotemporal n (CN V3)
17
Q

PS innervation lacrimal, nasal, palate glands

A

Superior salivary nucleus (caudal pons)
CN VII (via greater petrosal n)
Pterygopalatine ganglion
CN V2 branches to nasal cavity and palate glands
CN V2 to CN V1 branch (lacrimal n) to lacrimal gland

18
Q

Nasal cavity and palate blood supply

A

Branches from sphenopalatine a (branch of maxillary a)
Enters nasal cavity via sphenopalatine foramen, from pterygopalatine fossa
Ant, sup nasal cavity ophthalmic a branches
Near vestibule facial a branch

19
Q

Nasal cavity and palate innervation

A

Mostly CN V3 branches

Ant, sup nasal cavity from branches of nasocilliary n (CN V1)

20
Q

Teeth neurovasculature

A

Superior and inferior alveolar aa, vv, nn

Aa from maxillary a

21
Q

Tongue nn

A 
Lingual n (from CN V3) gen sensation ant tongue
CN VII (branches run with lingual n and chorda tympani) taste sensation ant tongue
CN IX sensation post tongue
CN XII motor all tongue mm except palatoglossus (CN X)
22
Q

Tongue blood supply

A 
Lingual a from ECA
Lingual vv (with lingual a and CN XII) join common facial v to, drain into IJV
23
Q

Oral cavity lymph

A

Ant tongue to submental and submandibular, to DCN including jugulo-omohyoid
Post tongue to DCN including jugulo-digastric

24
Q

Arytenoid cartilages processes

A

Vocal process

Muscular process

25
Q

Larynx mm abduct/adduct vocal folds

A 
Posterior cricoarytenoid (abduct)
Lateral cricoarytenoid (adduct)
Transverse arytenoid (adduct)
26
Q

Larynx mm adjust tension on vocal folds

A

Cricothyroid (lengthen/increase tension)
Thyroarytenoid (shorten/decrease tension)
Vocalis (adjust tension, vary length that vibrates)

27
Q

Larynx mm narrow laryngeal opening

A

Oblique arytenoid
Aryepiglottic
Thyroepiglottic
Adduct aryepiglottic folds and/or pull epiglottis posteriorly

28
Q

Larynx blood vessels

A

Superior laryngeal a from superior thyroid a

Inferior laryngeal a from inferior thyroid a

29
Q

Larynx lymph

A

To DCN

30
Q

Pharynx blood vessels

A

Branches from
Inferior thyroid a (from thyrocervical trunk, subclavian a)
Superior thyroid a, ascending pharyngeal, lingual, facial, maxillary aa (all from ECA)

31
Q

Pharynx lymph

A

Tonsils (pharyngeal, lingual, palatine) lymphoid aggregations in mucosa of pharynx
Lymph from pharynx drains to retropharyngeal nodes then DCN

Anatomy CAM304 (4 decks)

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