Anatomy Of The Throat Flashcards
Primary function of the oral cavity
Digestive organ
How do the tongue and palate aid speech
Modify sound from the larynx
Where is the oral vestibule located
Between the internal surface of the lips and external surfaces of the teeth
Where is the oral cavity proper located
Between the internal surface of the teeth and the oropharynx
role of the palate
forms a division between the nasal and oral cavities
what are the 2 parts of the palate
hard and soft palate
what is the hard palate made of
bone
what is the soft palate made of
muscle fibres covered by a mucous membrane
name the 3 foramina in the hard palate
incisive canal, greater and lesser palatine foramen
what passes through the incisive canal
nasopalatine nerves
what passes through the greater palatine foramen
greater palatine nerve and vessels
what passes through the lesser palatine foramen
lesser palatine nerve
what innervates the soft palate
lesser palatine nerve
sensory innervation of the oral cavity
branches of the trigeminal nerve
what does the greater palatine nerve supply
most of the glandular structures of the hard palate
what does the nasopalatine nerve innervate
the mucous membrane of the anterior hard palate
secretomotor innervation to the oral cavity
facial nerve, chorda tympani branch
what innervates the posterior 1/3 of the tongue
CN 9
general sensory innervation of the anterior 2/3 of the tongue
lingual nerve of CN V3
special sensory innervation of the anterior 2/3 of the tongue
CN 7, via chorda tympani
what produces saliva
major and minor seromucous glands
name the 3 major salivary glands
parotid, submandibular and sublingual
how does the parotid gland secrete into the mouth
by the upper 2nd molar
how does the submandibular gland secrete into the mouth
via the lingual caruncle
parasympathetic innervation of the parotid gland
glossopharyngeal nerve
innervation of the sublingual and submandibular glands
CN 7 and V3
histology of salivary glands
exocrine glands made up of secretory acini
what do mucinous acini of the salivary glands secrete
mucin (lubricant)
what do serous acini of the salivary glands secrete
digestive enzymes e.g. amylase
what is waldeyers tonsillar ring
ring of lymphoid aggregation in the subepithelial layer of the oropharynx and nasopharynx
name the 4 types of tonsils
palatine tonsils (tonsils)
pharyngeal tonsils (adenoids)
lingual tonsils
tubal tonsils
where are the lingual tonsils located
within the submucosa of the posterior 1/3 of the tongue
arterial supply to the lingual tonsils
lingual artery
innervation of the lingual tonsil
glossopharyngeal nerve
location of the pharyngeal tonsil
located in the midline of the nasopharynx
tubal tonsil
lymphoid tissue around the opening of the Eustachian tube in the lateral wall of the nasopharynx