Throat Flashcards
Name the joints in the cricoid cartilage
Cricothryoid
Cricoarytenoid
What is innervation to the mylohyoid?
CNV3
What is the innervation to the soft palate muscles?
All CNX except Tensor veli palatini which is V3
What level is the hyoid?
C3
What is the innervation to the circular muscles of the pharynx?
CNX
What are the four external muscles of the tongue?
Genioglossus
Hypoglossus
Styloglossus
Palatoglossus
What are the longitudinal muscles of the pharynx?
Stylopharyngeus
Palatopharyngeus
Salpingopharyngeus
What muscle relaxes vocal cords?
Thyroarytenoid muscles
What muscles tenses vocal cords?
Cricothyroid muscles
The circular (constrictor) layer of muscle of the pharynx is outer. T/F?
True
What is the innervation to the geniohyoid?
C1 via hypoglossal nerve
What is the function of longitudinal and circular pharyngeal muscles?
Longitudinal muscles lift up pharynx then circular muscles constrict to hold there
What two muscles make up the floor of the mouth?
Mylohyoid
Geniohyoid
What is the innervation to the vocal cord muscles?
CNX
Where does the submandibular gland enter mouth?
At the sublingual caruncle
What is the level of the Larynx?
C4-C6
What muscle splits the blood and nerve supply of the tongue?
Hypoglossus
Lingual artery is medial, hypoglossal (CNXII) is lateral
What innervates the external muscles of the tongue?
All CNXII (hypoglossal) except palatoglossus which is CNX
Which laryngeal muscle has a transverse and oblique section?
Arytenoid muscles
What innervates the anterior 2/3rd of tongue?
Sensory = CNV3 Taste = CNVII
Looking from the back, what are the three areas/feature of the larynx?
Layngeal vestibule
Laryngeal ventricle
Infra-glottic cavity
Where does CNXII leave the skull?
Hypoglossal canal
What lymph node would be inflamed in palatine tonsil pathology?
Jugulo-digastric node because palatine tonsils drains to here
What muscle causes abduction of the vocal cords?
Posterior crico-arytenoid muscles
Name the tonsils
Pharyngeal (adenoids)
Tubal (around eustachian tube)
Palatine
Lingual
What type of papillae does not contain taste buds?
Filiform
What is the sting like feature called that connects under tongue to floor of mouth?
Frenulum
What are the circular muscles of the pharynx?
Superior, middle and inferior pharyngeal constrictor
Name the types of papillae
Vallate
Foliate
Fungiform
Filiform
What muscle causes adduction of vocal cords?
Lateral crico-arytenoid muscle AND
Arytenoid muscles
What nerve provides sensation above the vocal folds?
Internal laryngeal nerve
What nerve provides sensation below the vocal folds?
Inferior laryngeal nerve
What is the innervation to the longitudinal muscles of the pharynx?
All are CNX except Stylopharyngeus which is CNIX
Where does the thyroid descend through the tongue?
foramen caecum
What nerve is the origin of inferior laryngeal nerve?
recurrent laryngeal nerve
Where does parotid secrete into mouth?
Upper second molar
What is the name for the space between vocal cords?
Rima Glottidis
What is the innervation of the parotid nerve?
CNIX, glossopharyngeal (via V3)
What are the muscles of the soft palate?
Tensor veli palatini Levator veli palatini Palatopharyngeus Palatoglossus Musculus uvulae
What is the innervation to the submandibular gland?
Parasympathetics of CNVII (via chorda tympani then V3)
What is the name for the division between anterior and posterior tongue?
Sulcus terminalis
Where does CNXII leave CNS?
Medulla oblongata
What feature of the soft palate helps break up food?
Palatal Rugae
Is CNXII mostly motor or sensory?
Motor
What are the two processes of the arytenoid cartilage?
Vocal and muscular process
Name all the intrinsic muscles of the larynx
Cricothyroid Thyroarytenoid Transverse and oblique arytenoids Lateral crico-arytenoid Posterior crico-arytenoids
What innervates the posterior 1/3rd of the tongue?
CNIX, glossopharyngeal
Where is a laryngoscope placed?
Into the vallecula: between epiglottis and tongue
What is the innervation to the sublingual gland?
CNVII (via chorda tympani then V3)