Flashcards in A & P Deck (13):
What is the only floating bone in body besides patella (knee cap)?
What is the leaf-like cartilage that acts as a protective structure when it inverts to cover the laryngeal opening during swallowing?
What is the largest of the laryngeal cartilages?
What ride on the high-backed upper surface of the cricoid cartilage, forming the posterior point of attachment for the vocal folds?
What sit at the apex of the arytenoid cartilages, horn-like shaped?
What are paired wedge-shaped rods embedded within the aryepiglottic folds
What is the complete ring sitting on top of the trachea, on lateral view it gives the appearance of a signet ring (back arches up relative to the front)?
Name the 3 parts of the hyoid bone.
1. Greater horns
2. Lesser horns
3. Corpus (body)
What do the 2 vocal processes on the arytenoids connect to?
Thyromuscularis and Thyrovocalis muscles
Name the 5 layers of the vocal folds
1. Epithelium-Thin sheet of squamous
(Lamina Propria-which is comprised of three different tissues)
2. Superfical Layer
3. Intermediate Layer
4. Deep Layer
5. Thyroarytenoid muscle
What are the ventricular folds?
a.k.a. false (vocal) folds, vestibular folds
-thick folds of mucous membrane
-above true vocal folds
-not used in normal phonation
What 4 functions of the larynx are there?
1. RESPIRATION = breathing for life (open glottis)
2. PROTECTION with cough reflex: Close, then open glottis with help of respiratory system
3. PROTECTION during swallowing: Close glottis with help of respiratory system
4. PHONATION with voice: Close/open
glottis and adjust vocal fold tension