Paranasal Sinuses, Nasal Cavity and Oral Cavity Flashcards
superior nasal concha bone?
ethmoid
middle nasal concha bone?
ehtmoid
inferior nasal concha bone?
it’s own bone
Spaces of nasal
Sphenoethmoidal recess
Superior meatus
Middle meatus
Inferior meatus
maxillary a. counterpart
pterygoid plexus
Deviated Septum why its a problem?
can make it hard to breathe on that side and a lot of infection occurs, not good flow of air and drainage.
Problem with surgery lots of bleeding.
Small lateral wall foramina
Nasal branches from greater palatine n. of V2
Frontal sinus is draining into the
middle meatus
Frontal sinus innervation
Supraorbital n. and supratrochlear n. (V1)
Frontal sinus arterial supply
Anterior ethmoid arteries
Frontal sinus lymphatics
Submandibular lymph nodes
Ethmoid Sinus drainage
posterior ethmoid=superior meatus
Middle/anterior ethmoid=middle meatus
Ethmoid sinus innervation
Anterior ethmoid n. and posterior ethmoid n. (V1)
Ethmoid Sinus aterial supply
Anterior and posterior ethmoid arteries
Ethmoid Sinus Lymphatics
Submandibular and retropharyngeal lymph nodes
Sphenoid SInus relation to sinus
hypophyseal fossa, pituitary gland, optic chiasm
Sphenoid sinus drainage
Spheno-ethmoid recess
Sphenoid sinus innervation
Posterior ethmoid (V1)
Spenoid sinus aterial supply
- posterior ethmoid artery
- pharyngeal artery
Spenoid Sinus Lymphatics
Reteropharyngeal lymph nodes
Maxillary sinus drainage
Middle nasal meatus
Maxilllary sinus inntervation
ASA, MSA, PSA (V2)
Common location for sinusitis?
maxillary sinus and can cause tooth pain.
oral cavity roof
hard and soft palate
oral cavity floor
soft tissue, muscles and tongue
oral cavity lateral walls
cheek
oral cavity anterior aperture
oral fissure
oral cavity posterior aperture
oropharyngeal isthmus, opening into the pharynx
What passes through aperature of oral cavity?
Hyoglossus Styloglossus Lingual a. and v. Lingual n. CNIX and CNXII Lymphatics Submandibular gland
Tongue papillae (4)-function to produce friction!
filiform
Fungiform
Vallate or Circumvallate
Foliate
Filiform?
most numerous
Fungiform
Concentrated along the margins of the tongue
contain taste buds
Vallate or Circumvallate
Largest papillae
Least numerous (8-12 in a v-shaped line)
Contain taste buds
Foliate
Sides of tongue
Contain taste buds
Taste bud cells
Gustatory cells
Basal cells
Five flavors detected over broad regions of the tongue:
salty sweet sour bitter umami (savory)
Extrinsic Muscles of tongue (with innervation)
Genioglossus (CN XII)
Hyoglossus (CN XII)
Palatoglossus (CN X)
Styloglossus (CN XII)
Intrinsic Muscles of the Tongue
Superior longitudinal
Inferior longitudinal
Transverse
Vertical
Median sagittal septum
Superior Longitudinal Muscle; A and I?
I: Submucosal CT and mucosa on margins of tongue
A: Shortens tongue, curls apex and sides of tongue
Inferior Longitudinal Muscle; A and I?
I: Apex of tongue
A: Shortens tongue, curls apex and turns it downward
Transverse Muscle; A and I?
I: Submucosal CT on lateral margins of tongue
A: Narrows and elongates tongue
Vertical Muscle; A and I?
I: CT in more ventral regions of tongue
A: Flattens and widens tongue
hypoglossal nerve is ___ to lingual nerve.
inferior
Lingual artery travels __ to hyoglossus
deep (towards the center)
facial artery is __to mylohyoid.
superficial
What nerve innervates both spheroid and ethmoid sinus
Posterior ethmoid nerve
General sensation of the anterior 2/3 of the tongue is supplied by
V3
Intrinsic muscle that flattens and widens the tongue
Vertical
Sphenoid sinus drains into the
spenoidethmoid recess
