ORAL CAVITY Flashcards
Enumerate the parts of the oral cavity
Lips Palate Pharynx Floor of the mouth Cheek
Found on the ANTERIOR part of the oral cavity
Lips
Found on the SUPERIOR part of the oral cavity
Palate
POSTERIOR portion of the oral cavity
Pharynx
INFERIOR portion of the oral cavity
Floor of the mouth
LATERAL portion of the oral cavity
Cheek
Enumerate the blood supply of the mouth
Facial artery Inferior alveolar artery Maxillary artery Infraorbital artery Postero superior alveolar arteries
Enumerate the LYMPHATIC SUPPLY of the mouth
Deep cervical nodes
Submental nodes
Submandibular nodes
Extends from the LIPS to the OROPHARYNGEAL ISTHMUS
Oral cavity (mouth)
Junction of the mouth and pharynx
Oropharyngeal isthmus
Bounded by the soft palate, palatoglossal folds, and the dorsum of the tongue
Oropharyngeal isthmus
The oropharyngeal isthmus is bounded ABOVE by the?
Soft palate
Palatoglossal folds
The oropharyngeal isthmus is bounded BELOW by the?
Dorsum of the tongue
Subdivisions of the oral cavity
Oral Vestibule
Oral cavity proper
SLIT LIKE space between the cheeks and the gums
Vestibule
This communicates with the exterior through the oral fissure
Vestibule
Superiorly and inferiorly, the vestibule is LIMITED by what?
By the REFLECTION of the mucus membrane from the lips and cheeks onto the gums
Where does the jaw communicates when it is closed?
With the ORAL CAVITY PROPER behind the 3rd MOLAR tooth on each side
The vestibule is bounded ANTERIORLY by the?
Lips
The vestibule is bounded LATERALLY by the?
Cheeks
The vestibule is bounded SUPERIORLY by the?
Mucolabial
Mucobuccal folds
The vestibule is bounded POSTERIORLY and MEDIALLY by the?
Teeth and gums
Marks the opening of the duct of the parotid gland
Small papilla on the mucosa opposite the upper 2nd molar
Duct of the parotid gland that connects it to the mouth
Stensen’s papilla on the Buccal vestibule
Cavity within the ALVEOLAR MARGINS of the maxilla and mandible
Oral cavity proper
The ROOF of the oral cavity is formed ANTERIORLY by?
Hard palate
The ROOF of the oral cavity is formed POSTERIORLY by?
Soft palate
The FLOOR of the oral cavity is formed by?
Mylohyoid muscle
Where does the anterior 2/3 of the tongue lie
Floor
It is covered with MUCUS MEMBRANE
Floor of the mouth
A mucosal fold, found in the midline that connects the TONGUE to the FLOOR of the mouth
Frenulum
What is found on eacg side of the frenulum
A small papilla that has the opening duct of the SUBMANDIBULAR GLAND
Submandibular gland
Wharton’s duct
This is produced by the Sublingual gland
Round ridge extending backward and laterally from the papilla
SUBLINGUAL GLAND
Bartholins
Rivinus
Composed of SKELETAL MUSCLES and moves VOLUNTARILY
Tongue
Mass of STRIATED MUSCLES covered with mucus membrane
Tongue
Divides the tongue into right and left halves
Median septum
Three parts of the tongue
Oral
Pharyngeal
Root
This comprises the ANTERIOR 2/3 the tongue
Oral
This comprises the POSTERIOR 1/3 the tongue
Pharyngeal
This comprises the ROOT the tongue
Base
Two tongue surfaces
Dorsal
Ventral
Divided into ANTERIOR 2/3 and POSTERIOR 1/3 by the sulcus terminalis
Dorsal surface
V shaped sulcus that divides the tongue into ANTERIOR 2/3 and POSTERIOR 1/3
Sulcus terminalis
This faces backwards and is marked by a the foramen cecum
Apex of the sulcus terminalis
A pit that marks the apex of the sulcus
Foramen cecum
An embryological REMNANT, marks a te SITE of the upper end of the THYROGLOSSAL DUCT
Foramen cecum
This portion of the tongue contains a ROUGH MUCOSA and shows 3 types of papilla
Anterior 2/3
3 types of papilla visible on the anterior 2/3 of the tongue
Filliform
Fungiform
Vallate
This portion of the tongue has NO PAPILLAE but shows NODULAR SURFACE because of underlying lymphatic nodules
Posterior 1/3
Underlying lymphatic nodules on the posterior 1/3 of the tongue
Lingual tonsils
Surface of the tooth that is SMOOTH and has NO PAPILLAE
Ventral surface
This is where you ye frenulum is found
Ventral surface, midline anteriorly
This is found LATERAL to the frenulum and can be seen through the mucosa
deep lingual vein
A fold of mucosa Found LATERAL to the LINGUAL VEIN
Plica fimbriata
Two types of tongue muscles
Extrinsic
Intrinsic
Muscles confined to the tongue (inside only)
Intrinsic muscle
Has no bony attachment
Intrinsic
The intrinsic muscles of the tongue is consists of
Longitudinal fibers
Transverse fibers
Vertical fibers