exam 3 chapter 17 Flashcards
what 2 sinuses are accessible to examine
frontal and maxillary sinuses
where are the frontal sinuses locations
frontal bone above and medial to the orbits
where are the maxillary sinuses located
in the maxilla along side walls of nasal cavitiy
what are the 2 deeper sinuses
ethmoid sinuses and sphenoid sinuses
which sinuses are present at birth
maxillary ethmoid sinuses
what is the first segment of the digestive system and an airway for the respiratory system
mouth
short passage bordered by lips, palate, cheeks, and tongue
oral cavity
anterior border of oral cavity, transition zone from skin to inner mucous membrane lining the oral cavity
lips
arching roof of mouth divided into 2 parts
palate
anterior part made up of bone
hard palate
posterior part, and arch of muscle that is mobile
soft palate
free projections hanging down from middle of soft palate
uvula
side walls of oral cavity
cheeks
what makes up the floor of the mouth
horseshow-shaped mandible bone
tongue, and underlying muscles
striated muscle arranged in a crosswise pattern so that it can change shape and position
tongue
rough, bumpy elevations on its dorsal surface
papillae
smooth, shiny and has prominent veins
ventral surface
midline fold of tissue connecting to floor of mouth
frenulum
why is it important for the tongue to change shape
enhances functions in mastication, swallowing, cleansing teeth, and the formation of speech
how many salivary glands does the mouth contain
3
gland lies within cheeks in front of ear
parotid gland
stensen’s duct
runs forward to open on buccal mucosa opposite second molar
glands beneath mandible at angle of jaw
submandibular gland
wharton’s duct
runs up and forward to the floor of mouth and opens at either side of frenulum
smallest gland, almond shaped, lies within floor of mouth under tongue and has many small openings along sublingual fold under tongue
sublingual gland
clear fluid that moistens and lubricates the food bolus, starts digestion, and cleans and protects the mucosa
saliva
how many teeth do adults have
32
what collars the teeth
gums (gingivae)
gums
thick fibrous tissues covered with mucous membranes
how are the gums different from the rest of oral mucosa
pale pink color and stippled surface
What is the first segment of the respiratory system
nose
what is the upper third of the nose made of
bone
what is the lower 2/3rds of the nose made of
cartilage
Kiesselbach’s plexus
anterior part of septum holds a rich vascular network
common site of nosebleeds
lateral portion of each nasal cavity contains what
three parallel bony projections: superior, middle, and inferior turbinate
where do sinuses drain
middle meatus
where do tears from nasolacrimal duct drain
inferior meatus
