Fascial Spaces QHs Flashcards
the canine space is a superficial or deep space?
superficial
the canine space is ______ to canine fossa, but ___ to muscles that act on the lip
superficial ; deep
originating site of canine space infection
maxillary canines
These symptoms are common with an infection in what space?
swelling along lateral nose which can extend to the medial eye; swelling obliterates nasolabial fold and spreads to the philtrum of the upper lip
Canine
what space does the canine space communicate freely with
buccal space
infection in the canine space can spread to the cavernous sinus through the ______ path
venous
the buccal space is a superficial or deep space and it is between the _____ and ______ muscle
superficial ; skin ; buccinator
originating sites of buccal space infection
maxillary & mandibular premolars & molars
These symptoms are common with an infection in what space?
cheek swelling which can spread up to the eye
buccal space
What space
Easily communicates with canine space so swelling may go to the philtrum of the upper lip when combined with canine space
Buccal space
infection from the buccal space can also spread to the _____ space
masticator
The parotid space is separated from everything else from because the space is surrounded by
parotid fascia
What space is this characteristic of:
Contents include the parotid gland, parotid lymph nodes and the structures that travel through the parotid gland including external carotid artery, retromandibular vein, and branches of CN VII
Parotid space
Not typically a site of odontogenic infection
parotid space
What space has the following contents:
everything infratemporal fossa + masseter muscle + full temporalis muscle + TMJ
masticator space
originating sites of masticator space infection
** state primary site first **
then what are the other 2 sites
primary: mandibular 3rd molar
then: mandibular & maxillary molars and premolars
These symptoms are common with an infection in what space?
cheek swelling, pain, & trismus (lockjaw)
masticator space
What space communicates easily with parapharyngeal space
masticator space
What space can also communicate with submandibular, sublingual, cavernous sinus, & orbit
masticator space
how can the masticator space communicate with the cavernous sinus
via the pterygoid venous plexus
how can the masticator space communicate with the orbit
via the pterygoid venous plexus
the sublingual space is between the ______ and ________ muscle
mucosa & mylohyoid
what space contains:
sublingual gland, deep portion of submandibular gland, submandibular duct, lingual a / v / n, CN XII
sublingual space
An infection with the following symptoms is characteristic of what space:
elevated tongue, swollen floor of mouth, decreased tongue mobility, & dysphagia
sublingual space
typical sources of infection for the sublingual space
mandibular premolars & 1st molar
the sublingual space communicates easily with what 2 spaces
submandibular & parapharyngeal
the sublingual space can also communicate with what space
masticator space
The following contents can be found in what space
submandibular gland, submandibular lymph nodes, CN XII, nerve to mylohyoid, facial a/v, lingual a/v
submandibular space
The _______ muscle separates submandibular & sublingual spaces
Mylohyoid
typical sources of infections in the submandibular space
2nd & 3rd mandibular molars
the following symptoms are found with an infection in what space:
dysphagia and swelling in submandibular triangle
submandibular space
The submandibular space can communicate easily with what 3 spaces
sublingual
submental
parapharyngeal
the submandibular space can ALSO communicate with what 2 spaces
masticator & buccal
the submental space is separated from sublingual space by the _______ muscle
mylohyoid
typical source of an infection in the submental space
mandibular incisors
an infection in what space would have these symptoms:
midline swelling under chin
submental space
the submental space communicates with what space
submandibular
What space is this:
Fat-filled space located medial pterygoid muscles & parotid gland and lateral to the buccopharyngeal fascia covering the superior pharyngeal constrictor
parapharyngeal space
The parapharyngeal space extends anteriorly to the _________ and posteriorly to the ___________
pterygomandibular raphe ; prevertebral fascia
The parapharyngeal space extends from the ______ to the level of angle of the _______ / greater horn of the ______
cranial base ; mandible ; hyoid
typical source of infection in the parapharyngeal space
maxillary & mandibular molars
The following symptoms are characteristic of an infection in what space:
medial displacement of pharyngeal wall, dysphagia, impalpable angle of mandible
parapharyngeal space
The parapharyngeal space communicates easily with what 4 spaces
submandibular
sublingual
masticator
retropharyngeal
the retropharyngeal space is between buccopharyngeal fascia and alar fascia extending from the ______ to the ____ vertebral body
skull base ; T4
the retropharyngeal space is laterally bounded by the ________ fusing with the _________
carotid sheaths ; buccopharyngeal fascia
the retropharyngeal space communicates easily with the
parapharyngeal space
The retroparapharyngeal space leads directly to the
mediastinum (“danger space”)
the masticator space is bounded laterally by:
lateral cervical fascia superficial to the masseter and temporalis muscles
the masticator space is bounded medially by:
medial cervical fascia deep to the medial pterygoid muscle
the masticator space is bounded anteriorly by:
masticator fascia fused to buccopharyngeal fascia
the masticator space is bounded posteriorly by:
stylomandibular ligament
