Lecture2: Nose And Larynx Flashcards
What lays in the Nasal Septum superiorly?
Perpendicular plate of ethmoid bone
What lays in the nasal septum posteriorly and inferiorly?
Vomer
What lays in the nasal septum anteriorly?
Septal cartilage
What does a deviated nasal septum lead to?
Nose bleeding
Name 2 functions of paranasal air sinuses?
Lighten weight of the skull and add resonance to voice
What is each conchae covered with?
Mucous membrane
What is the space below each conchae called?
It’s corresponding Meautus. Eg. Superior meautus
What secretes tears?
The Lacrimal gland
Where are tears collected?
In the Lacrimal sac
Where does the Nasolacrimal duct extend downward from and open in?
It extends from the lacrimal sac downwards and opens in the Inferior Meatus
Where is Little’s area?
The anterior inferior part of the Nasal septum
What is Little’s area’s clinical correlation?
Common site of bleeding in children and young adults
Describe the Epiglottis cartilage
Single, Leaf-like
Describe the Thyroid cartilage
Of 2 Laminae that meet anteriorly and more prominent in males. Single
Describe the Cricoid Cartilage?
Single, ring shaped cartilage
What 2 cartilages is the Aryepiglottic fold attached to?
Arytenoid and Epiglottis
Name contents of Aryepiglottic fold?
Corniculate and cuneiform cartilage
What direction does the Laryngeal inlet open?
Posteriorly
What is the superior boundary of the Laryngeal inlet?
Upper border of Epiglottis
What is the lateral boundary of the Laryngeal inlet?
The Aryepiglottic fold
What is the inferior boundary of the Laryngeal inlet?
The interarytenoid fold
What is the inferior border of Conus Elasticus?
Upper border of cricoid cartilage
What is the posterior border of Conus Elasticus?
The vocal process of arytenoid cartilage
What is the anterior border of Conus Elasticus?
Thyroid cartilage
What is the upper border of Conus Elasticus called?
Vocal cord
In the interior of the Larynx, what is the fold that lays above, and the one that lays below?
Vestibular fold followed by vocal fold
What is the space between both folds called?
Vestibule
What does the Posterior Cricoarytenoid do?
Abduction of vocal cords
What does the Lateral Cricoarytenoid do?
Adduction of vocal cords
What does the Cricothyroid do?
Tension of the vocal cords
What does the Thyroarytenoid do?
Relaxation of vocal cords
Sensory nerve supply of muscles above vocal cord?
Internal laryngeal
Sensory nerve supply of muscles below vocal cord
Recurrent laryngeal
What are all muscles of the larynx motorly supplied by except the Cricothyroid?
Recurrent Laryngeal
What motorly supplies the Cricothyroid?
The External Laryngeal nerve
What does unilateral injury of Recurrent laryngeal lead to?
Hoarseness of voice
What does partial bilateral injury of Recurrent Laryngeal lead to?
Suffocation
What does Complete bilateral injury of Recurrent Laryngeal lead to?
Loss of voice