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Anatomy of Ingestion

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benryan95's version from 2015-05-09 08:01

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Question Answer
In the oral cavity, where will you find the masticatory mucosa?The hard palate, dorsum of tongue and gums
In the oral cavity, where will you find the lining mucosa?everywhere else in the oral cavity that isn't where you find masticatory mucosa
Which bones contribute to the hard palate?Palatine process of maxilla + horizontal plates of the palatine bones
What does the soft palate consist of?5 palatine muscles attached to the palatine aponeurosis
How does the colour of the mucosa of the soft and hard palate differ?Hard = whiter, Soft = Yellower/Pinker
Which nerve passes through the incisive foramen?Nasopalatine nerve
Which artery passes through the incisive foramen?Greater palatine artery
What purpose do palatal rugae serve?They help push food to the back of the pharynx
Which muscle forms the floor of the mouth?Mylohyoid
What opens into the mouth at the sublingual papillae?Submandibular ducts
What structure underlies each sublingual fold?Openings of the sublingual ducts
Name the teeth in each quadrant of the oral cavity from medial to lateral?2 Incisor, 1 Canine, 2 Pre-Molar, 3 Molar
What is the purpose of Waldeyer's ring?Acts as a 1st line defence against ingested/inhaled infection
Which structure divides the anterior 2/3 from the posterior 1/3 of the tongue?Sulcus terminalis
What is the foramen caecum?A hole at the back of the tongue, that is the non-functional remnant of the thyroglossal duct
Where are circumvallate papillae located?Anterior to the sulcus terminalis
What are circumvallate papillae sensitive to?taste
Where are fungiform papillae located?Anterior 2/3 of the tongue
What are fungiform papillae sensitive to?Taste (perhaps touch?)
Where are foliate papillae located?Side of tongue
What are foliate papillae sensitive to?Taste
Where are filliform papillae located?Anterior 2/3 of the tongue
What are filliform papillae sensitive to?Touch
Which nerve supplies general sensation to anterior 2/3 of the tongue?Trigeminal nerve
Which nerve supplies taste sensation to anterior 2/3 of the tongue?Facial nerve
Which nerve supplies general sensation to posterior 1/3 of the tongue?Glossopharyngeal
Which nerve supplies taste sensation to posterior 1/3 of the tongue?Glossopharyngeal
What lies under the posterior 1/3 of the tongue?Lingual tonsils
Where does the parotid gland open into the oral cavity?Opposite 2nd maxillary molar on cheek
Where does the submandibular gland open into the oral cavity?Sublingual papillae, either side of lingual frenulum
Where does the sublingual gland open into the oral cavity?Underneath the sublingual folds
Which duct is most prone to blockage by stones?Submandibular duct
Which nerves provide secretomotor innervation to the parotid gland?IX and V3
Which nerve provides secretomotor innervation to the submandibular gland?VII
Which nerve provides secretomotor innervation to the sublingual gland?VII
What type of secretions does the parotid gland produce?Serous
What type of secretions does the submandibular gland produce?Mixed, mainly serous
What type of secretions does the sublingual gland produce?Mixed, mainly mucous
Which nerves provide sensory innervation to the palate, cheeks, floor of mouth, teeth and fauces?V (and IX?)
What type of joint is the TMJ?Modified hinge - synovial (also known as a hinge joint and a sliding joint)
What are the 4 masticatory muscles?Masseter, Temporalis, Medial pterygoid, Lateral pterygoid
What type of epithelium lines the nasopharynx?Stratified squamous and pseudostratified columnar epithelium
What type of epithelium lines the oropharynx?Non-keratinised squamous stratified epithelium
What type of epithelium lines the laryngopharynx?Stratified squamous epithelium
Which level does the oesophagus begin at?C6
What are the anterior relations of the oesophagus?Cricoid cartilage and trachea
Which nerves provide sensory innervation to the pharynx?IX, X (small amount of V2)
Which nerves provide motor innervation to the pharynx?Mainly X, IX also innervates stylopharyngeus
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