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