Anatomy of oral cavity & nerve supply to mucous lining
What are parts of the hard and soft palate?
-Hard palate: maxilla, incisor canal, teeth
-Soft palate:
What are the 4 muscles of the tongue?
Palatoglossus, genioglossus, hyoglossus, styloglossus
Which branch provides parasympathetic innervation to these glands?
Facial n. (CN VII through chorda tympani)
What 3 parts is the pharynx organized into?
Nasopharynx, oropharynx, laryngopharynx
What is the only bony structure in the larynx?
Hyoid bone
which foramen allows for the passage of palatine vessels and nerves?
Greater Palatine Foramen
What are the tongue muscle motor innervations?
Palatoglossus: Vagus nerve from pharyngeal plexus
Genioglossus, hypoglossus, styloglossus: Hypoglossal n.
Where does the sublingual gland drain into?
Oral cavity via sublingual ducts
What does the pharyngeal plexus innervate?
Most muscles and mucosa of soft palate and pharynx EXCEPT:
Stylopharyngeus (innervated by glossopharyngeal n.) & tensor vili palatini (V3)
What are the cartilagenous structures in the larynx?
-Epiglottis cartilage
-Thyroid cartilage (superior horn, lamina, laryngeal prominence):
-Arytenoid cartilage (muscular & vocal process)
-Cricoid cartilage (lamina & arch)
What nerves and vessels go through the incisor canal?
Nasalpalatine n sphenopalatine a
What is the blood supply to the tongue?
ECA -> Lingual a. which gives off:
-Dorsal lingual a.
-Deep lingual a.
-Sublingual a.
Facial artery:
-tonsillar branch and submental branch
Where does the submandibular gland drain into?
Submandibular duct (Medial side of gland to the lateral side of the frenulum)
What type of innervation does the pharyngeal plexus give?
All of them! GSA (pharyngeal branch of glossalpharyngeal n.), GSE (all), GVA (pharyngeal branch of vagus n.), GVE (all)
How do you name teeth?
32 teeth
or
L/R & bone name & number (counted from anterior) & type of tooth (ex: left mandibular 3rd molar)
What supplies sensory intervention to tongue?
Anterior 2/3: chorda tympani
What nerve is damaged when the patient is asked to stick their tongue out straight but deviates to the left?
Hypoglossal n.