Part II - Spaces Flashcards
What is the elliptical space between the eyelids called?
Palpebral fissure
What is the potential space between the sclera and the fascia bulb I?
Episcleral space
What substance fills the eyeball space posterior to lens?
Vitreous humor
Describe the superior synovial joint space of TMJ
(Fairly lax, permits AP gliding)
Roof: mandibular fossa of temporal bone
Floor; articular disc
Describe the inferior synovial joint space of TMJ
(Fairly restrictive, permits rotation)
Roof - articular disc
Floor - mandibular condyle
What space are you in when you are between teeth/gums of upper and lower jaws?
Oral cavity proper
What space are you in when you are between the lips/cheeks and teeth/gums?
Vestibule
What are the borders of the oral cavity?
Anterior - lips Lateral - cheeks Superior - palate Inferior - tongue and floor of mouth Posterior - oropharynx
What are the contents of the vestibule?
Frenulum Labii (superior and inferior) Parotid papilla (from parotid duct)
What does gingivae mean?
Gums
What are the contents of the oral cavity proper?
Frenulum lingula
Sublingual papillae
Sublingual folds
Teeth
What is the space within a tooth filled with?
Pulp cavity — contains vessels and nerves
What is the space between palatoglossal arches that is also an opening between oral cavity and oropharynx?
Fauces
What are the spaces under the conchae?
Meatuses/meati
What is the space under the inferior concha?
Inferior nasal meatus *nasolacrimal duct drains here
What is the space under the middle concha?
Middle nasal meatus
What is the space under the superior concha?
Superior nasal meatus
What is the narrow space superior to superior concha?
Sphenoethmoidal recess
What are the multiple spaces between orbit and nasal cavity called?
Ethmoid air cells
Name this space:
Superior border is soft palate
Inferior border is hyoid bone
Lateral walls are palatoglossal arches and palatopharyngeal arches
Oropharynx
What are the borders of the infratemporal fossa?
Anterior - maxilla
Roof - greater wing of sphenoid
Inferior - insertion of medial pterygoid muscle to mandible
Medial - lateral pterygoid plate of sphenoid
Lateral - mandibular ramus
Posterior - tympanic plate, mastoid process, styloid process of temporal bone
What are the borders to the pterygopalatine fossa(sphenopalatine fossa)?
Posterior - pterygoid process of sphenoid bone
Anterior - maxilla
Medial - perpendicular plate of palatine bone
Lateral - pterygomaxillary fissure
Floor - pyramidal process of palatine bone
What are the borders of each nasal cavity?
Floor - hard palate including horizontal plate of palatine bone and palatine process of maxilla
Roof - hard palate including: nasal, frontal, ethmoid, sphenoid
Medial wall - median nasal septum
Lateral wall - maxilla, ethmoid, palatine, nasal, lacrimal, inferior nasal concha
What is the opening called that is between laryngopharynx and laryngeal cavity?
Laryngeal inlet (or aditus)
What is the space called that is superior to vestibular folds?
Vestibule
What is the space called that is inferior to the vocal folds?
Infraglottic space
What is the space called between left and right vocal folds?
Rima glottidis
What is the space that consists of left and right vocal folds and rima glottidis?
Glottis (vocal apparatus)
Tympanic membrane is the lateral border for ______ ear and medial border for ____ ear.
Middle; external
