Facial spaces Flashcards
What are the secondary fascial spaces?
superficial and deep temporal spaces, masticator, lateral pharyngeal, retropharyngeal and prevertebral
Canine space bordered anteriorly by what two muscles?
levator labii superiors and elevator anguli oris
canine space abscesses can come from where?
max anterior teeth and bicuspids, mostly canines.
infections in buccal space mostly caused by which teeth?
max or man molars or premolars.
buccal space may travel where?
pterygomandibular space, submasseteric space,
deep and superficial temporal spaces, and the
lateral pharyngeal space.
boundaries of buccal space?
Lateral: Superficial fascia and skin of cheek
Medial: Buccinator muscle
Inferior: Mandible and superficial fascia
Superior: Maxilla, zygomatic arch
Posterior: Parotid gland & pterygomandibulr raphe
Anterior: Superficial fascia & muscles of the lips
contents of submental space?
anterior jugular vein, submental lymph nods
submental space communicates with which space?
submandibular space posteriorly
submental space involvement caused by which teeth?
mandibular incisors
boundaries of submental space
Anterosuperiorly: mental symphysis (Apex)
Posteroinferiorly: Hyoid bone (Base)
Superolaterally: Anterior bellies of digastric muscles
Floor: mylohyoid muscle
Roof: superficial fascia containing platysma
infection of submandibular space from which teeth?
mandibular molars below the mylohyoid line
communication of submandibular?
superficial spaces, (2) the sublingual region, (3) the parotid region, and (4) the masticator region
contents of submandibular space?
–(1) the submandibular gland –(2) lymph nodes –(3) the hypoglossal nerve –(4) the nerve to the mylohyoid –(5) the facial artery and submental branch
borders of submandibular space?
laterally by superficial fascia and the body of the mandible
–medially by the mylohyoid muscle
–superiorly by the mylohyoid line of the mandible and mylohyoid muscle
–and inferiorly by the hyoid bone.
infection of sublingual space from where?
mandibular molars and premolars above the mylohyoid line
communication of sublingual space?
submandibular region or the masticator region.
contents of sublingual space?
1) the sublingual gland
–(2) the deep submandibular gland and duct
–(3) the lingual nerve and submandibular ganglion
–(4) the lingual artery and branches
–(5) the hypoglossal nerve.
boundaries of sublingual space
– laterally by the body of the mandible
–medially by the base of the tongue
–inferiorly by the mylohyoid muscle
–superiorly by mucosa of the floor of the mouth.
What is ludwig angina?
cellulitis (infection) involving bilateral sublingual, submandibular, and submental spaces.
Which teeth usually cause ludwig angina?
second and third mandibular molars
superficial temporal space is between what?
the temporal fascia and the temporalis muscle
Deep temporal space is between what?
temporalis muscle and later surface of the skull
both temporal spaces are filled with what?
loose areolar tissue
below the zygomatic arch, both temporal spaces communicate with what?
infratemporal region, pterygopalatine fossa, and masticator region.
infections from what teeth causes the infection in the temporal spaces?
mandibular 3rd molars
masticator region infections causes by what.
2nd or 3rd mandibular molars
subdivisions of masticator region?
–infratemporal space
–masseteric (submasseteric) space
–pterygomandibular space
Where is masticator region located?
either side of mandibular ramus
The medial continuation of the deep temporal space superior to the lateral pterygoid muscle and inferior to the sphenoid bone is known as what?
infra temporal space
borders of infra temporal space?
Anterior: maxilla Posterior: parotid gland Medial: lateral pterygoid plate Lateral: temporalis muscle Superior: sphenoid bone Inferior: lateral pterygoid ms.
borders of masseteric space?
Anterior: Buccal fascia Posterior: Parotid fascia Medial: Mandible Lateral: Masseter ms. Superior: Lateral pterygoid ms. Inferior: Mandible
A potential space located between the
masseter muscle and lateral surface of the
ramus of the mandible
masseteric space
borders of ptrygomandibular space
Medial: Medial pterygoid Lateral: Mandible Superior: Lateral pterygoid ms Inferior: Mandible Anterior: Buccinator Posterior Parotid fascia & mandible
Pterygomandibular space infection caused by what ?
infections in second and third molars
contents of Pterygomandibular space
inferior alveolar nerve, artery and vein,
lingual nerve and chorda tympani.
communications of Pterygomandibular space
superficial temporal, parapharyngeal,
buccal, submasseteric, and
submandibular
